How to Interpret Common False Color Images, NASA Goddard Space Try some of the band combinations listed above and see how various land features look. Just click on the "Window" tab and choose "Open RGB Image Window", a simple menu will open that will allow you to choose the combination you need (natural color, and IR color are preprogrammed): Composing a RGB color composite. When applied to black-and-white images, true-color means that the perceived lightness of a subject is preserved in its depiction. This unique absorption and reflection pattern is called a spectral signature. How does alkaline phosphatase affect P-nitrophenol? wavelengths of electromagnetic radiation and emitting others. Using Verbs in the Active Voice. Another commonly used vegetation index is the Normalised Difference Vegetation Index (NDVI) computed by. Reassign the colors in the 123 RGB image and create a 132 RGB false color composite. (NASA/NOAA False color composite In the previous step, we used the ol/source/GeoTIFF source to render a true color image from a single, multi-band source (with red, green, blue, and alpha bands). There are several RGB functions in Fiji. In the below false-color image of Algeria, however, water is blue because it is full of sediment. Want FREE Counselling for Exam Preparation? What sensation is carried in posterior column? The bright yellow areas are covered with shrubs or less dense trees. Delta with the same view in midwave infrared; both images are from the Visible Infrared Imaging Radiometer Suite in midwave infrared (lower); this view also contrasts warm waters with colder land and clouds. Natural Color (4, 3, 2) The natural color composite uses a band combination of red (4), green (3), and blue (2). False Colour Composite (FCC) : An artificially generated colour image in which blue, green and red colours are assigned to the wavelength regions to which they do not belong in nature. remotely sensed imagery created from . Composite color image. You can also make your own Landsat images and experiment with band combinations by using software like Adobe Photoshop or ImageJ. False color images are a representation of a multi-spectral image produced using bands other than visible red, green and blue as the red, green and blue components of an image display. Click on add layers and then select one of the alternate band combinations (1-2-1, 3-6-7, or 7-2-1). Note that both the XS1 (green) and XS2 (red) bands look almost identical to the panchromatic image shown above. a composite is a tailor made substance of any combination. Finally, one of the interesting gems in SNAP is the "Spectrum . All other band values from 5 to 9 will be pulled down to the maximum value of the palette that represents it, which is 4. Plants that are growing quickly reflect more infrared, so they are brighter red. When Water is black and blue, and urban areasincluding Miami, Fort Lauderdale, and West Palm Beachare silver. Because burned land looks different in this kind of false-color image, it is possible to see how extensively farmers rely on fire in this region. We can combine three image bands into one picture by display each band as either Red, Green or Blue. We also have that bias when we look at satellite images that dont An image formed by placing a band of imagery into each of the three color guns (red, green, and blue) to view an image in color rather than gray scale. Ive set the max value to 0.5, but as Ive mentioned, it takes a bit of playing around with the min and max to get the right brightness and contrast thats pleasing to the eyes. Midwave infrared energy is also useful in measuring sea surface light, X-rays, and gamma rays have shorter wavelengths and useful for seeing water surface features and for spotting the sea- or lake floor in shallow waters. Urban areas are purple. Associating each spectral band (not necessarily a visible band) to a separate primary colour results in a colour composite image. maps that measure everything from plant growth or cloudiness. image by Jesse Allen and Robert Simmon, using VIIRS data from NGDC.). Thanks to the following science reviewers and/or content providers: Michael King, Vincent Salomonson, David Mayer, Patricia Pavon and Belen Franch. . This is a true color image. 1). In the image below, different types of sandstone and limestone make up Alloy. Sometimes they don't make it easy. Natural Color - Convert Images from False Color Composite (FCC) to Natural Color in ERDAS Imagine Geo-Spatial Tutorials 19.9K subscribers Subscribe Share Save 11K views 8 years ago This video. True Colour Composite: If a multispectral image consists of the three visual primary colour bands (red, green, blue), the three bands may be combined to produce a true colour image. image cant possibly be real.. True color and False color composites are two different types of view that are used to gather information in Remote sensing data. to human eyes. We now have the base layer and filtered the dataset. It is most commonly used to assess plant density and healht, as plants reflect near infrared and green light, while absorbing red. Since were representing invisible light (or a combination of invisible and visible) using a visible colour, we can pretty much use any colour we want to represent certain reflective surfaces on the map. it can be observed both day and night. Otherwise, feel free to skip past this next code block and into the walkthrough. The range of wavelengths between 0.4 and 0.5 micrometers. Four main types of information contained in an optical image are often utilized for image interpretation: They are illustrated in the following examples. The distance between the top of each wavethe wavelengthis smaller for high-energy waves Water absorbs NIR, so A very common false colour composite scheme for displaying a SPOT multispectral image is shown below: This false colour composite scheme allows vegetation to be detected readily in the image. Shortwave-infrared bands are also useful for (NASA Earth Observatory image by Robert Simmon. You can see Our eyes can only see a very small portion of the spectrum of light that surrounds us. in the ocean and plants on land. Images displayed with these colors follow a spectrum that includes purple, blue, black, grey, yellow, orange, and red. The spectrum of visible light stretches from violet (0.4 m) to red (0.7 m). Bare soils, roads and buildings may appear in various shades of blue, yellow or grey, depending on their composition. Now lets import the Landsat Image Collection. Internet. distinguishing between cloud types (water clouds versus ice clouds) and between clouds, snow, and ice, all of E.g., Blue band Red; Red band Green; Green band Blue. MODELO: Patricia: Me gusta esta chaqueta. Color Composite. The display colour assignment for any band of a multispectral image can be done in an entirely arbitrary manner. This is a traditonal and polular band combinaton useful in seeing changes in plant health. Typically, when looking at a photograph, the human eye can only distinguish about 16 shades of gray from one another. radiation.) Urban areas are usually silver or purple, depending on the building material and how dense the area is. With false colour composites, these boundaries are much sharper because different types of surfaces reflect invisible light at much varied levels. See the heading below for more information about common band combinations for false color composites. Our next concerns are the min and max parameters. We visited 201 sampling points that were previously defined based on visual interpretation of a Landsat 8 RGB color composite of bands 4, 5, and 6 acquired on 27 August 2021. . Our . ), Why does the difference matter? The third image shows the scene in green, red, and near infrared light. B = (3 XS1 XS3)/4. Me gustara comprar esto. (See also: composite color raster object.). This band combination is valuable for gauging plant health. Eduncle material consists a good no. This means SWIR measurements can help scientists It has a responsive doubt solving team which solves & provides good solutions for your queries within 24 hours. Even the sparse vegetation in Algerias desert landscape stands out as bright green spots in the above image. So what does a satellite imager measure to produce an image? The red color shows Spitzer's view in infrared light. This infrared photograph shows Gases also let a few wavelengths pass through Understanding the characteristics of how visible light represents different land surfaces is fundamental to remote sensing. Each rock type reflects shortwave infrared light differently, Snow and ice are more easily discernible as their dark blue color stands out. Hubble images are all false color - meaning they start out as black and white, and are then colored. A false-color image uses at least one nonvisible wavelength, though that band is still represented in red, green or blue. The result looks like the world as humans see it. Flight Center. This helps distinguish water from snow and ice; it also distinguishes clouds made up mostly of liquid water or ice crystals. What is the definition of prefrontal area? GISC1421RasterDesignCh13TerrainMapping&Analys, Edge Reading, Writing and Language: Level C, David W. Moore, Deborah Short, Michael W. Smith, Literature and Composition: Reading, Writing,Thinking, Carol Jago, Lawrence Scanlon, Renee H. Shea, Robin Dissin Aufses, The Language of Composition: Reading, Writing, Rhetoric, Lawrence Scanlon, Renee H. Shea, Robin Dissin Aufses. scene. Southeast Florida is shown in near infrared, red, and green light. True colour composite image generated using the band 1,2,3 in red, green, blue filters and it has given contrast signature for anorthosite in mixture of yellow and white colour ( Figure. Composite colour is when any other colour produced when mixing two or more primary colours in different proportions. The lake and its surrounding areas are a popular tourist destination close to the capital. It means associating each spectral band to a primary colour results in a Colour Composite Image (Fig. Also referred to as Digital Number (DNs). Kindly give us 1 - 3 week to review your profile. At this point, it gets counterintuitive since were representing B4 (red) with green colours and B3 (green) with blue colours. Thanks to the ability of the SWIR-2, SWIR-1, Red scheme to enhance the presence of active fires making them appear as different shades of red, we can use these false color images to monitor forest fires and volcanic activity, and other similar phenomena. Alloy vs. Composite. Sometimes colors are chosen to make them look as our eyes would see them, called "natural color," but not always. For optical images lacking one or more of the three visual primary colour bands (i.e. Download FREE Study Material Designed by Subject Experts & Qualifiers. Without this, the map would just use the default OpenStreetMap base layer, which doesnt matter in our current example. When these three colours are combined in various proportions, they produce different colours in the visible spectrum. How many biogeographical classification of India. Infrared (IR) lightspecifically between 6,000 to 7,000 nanometersis critical for observing water vapor in In this false-color band combination, plant-covered land is bright green, water is black, and bare earth ranges from tan to pink. Shortwave infrared (red), near infrared (green), and green (blue), often used to show floods or newly burned land. In this case, the colour of a target in the displayed image does not have any resemblance to its actual colour. Steel is an alloy of iron and carbon. However, some scheme may be more suitable for detecting certain objects in the image. Annapolis Landsat TM Scene With Different Band Combinations. An image arranged by placing the near-infrared band in the red color gun, the red band in the green color gun, and the green band in the blue color gun. Occasionally, the thermal features of interest will be layered on top of a true-color or grayscale image, particularly in the case of a fire or volcano. False Colour Composite (FCC) Any other combination of colours. The insights extracted from the false color imagery can help solve real-world challenges. If a multispectral image consists of the three visual primary colour bands (red, green, blue), the three bands may be combined to produce a "true colour" image. One map is displayed in shades of red, one in shades of green and one in shades of blue. TM Bands 1, 2, 3 for the older Landsats, and 2,3,4 for Landsat 8. Difference between true color, false color and pseudo-color 1.On the processing object: pseudo-color processing is for grayscale images, and pseudo-color processing is for color images. The green areas consist of dense trees with closed canopy. measurements into images. Individual trees can be seen. other hand, reflect near infrared light strongly, and healthy plants reflect more than stressed plants. Hubble images are all false color meaning they start out as black and white, and are then colored. The volcano itself reflects a tiny amount of infrared at its edges, but its colour is mostly a combination blue and green colours representing reflected visible red and green lights, respectively. What are the different methods in preparing a povidone iodine. distinctive, bright color. The portion of the electromagnetic spectrum with wavelengths between 0.01 and 0.4 micrometers. and longer for low-energy waves. Bare earth appears as a magenta color and non-crop vegetation appears as more subdued shades of green. There are many different false color compositions that can distinguish many different functions. Clear water appears dark-bluish (higher green band reflectance), while turbid water appears cyan (higher red reflectance due to sediments) compared to clear water. Native functions can be found in Image Color. This series of Landsat images of southeastern Florida and the Northern Everglades illustrates why you might want to see the world in false color. ), Color satellite images are composed of multiple, individual channels of data, each corresponding to a specific range of wavelengths. Near infrared (NIR) light includes wavelengths between 700 and 1,100 nanometers. green light. The most commonly seen false-color images display the very-near infrared as red, red as green, and green as blue. The dust would obscure the more faint ones, but you wouldn't really see the dust itself as it is so sparsely distributed. difference between true color composite and false color composite. Apart from this, when these three primary colours are combined in various proportions, they produce different colours in the visible spectrum. Using SkyWatch's EarthCache, you can obtain False Color Urban images captured by Sentinel-2 with a resolution of 10m. (NASA image by Robert Simmon with, This natural-color image shows southeast Florida in red, green, and blue light. near infrared view of the, Comparing the differences between 3 shortwave infrared bands highlights the mineral geology We tell folium to centre the map to the given [latitude, longitude] coordinates, and then zoom in to 11.5 levels. 2.In terms of processing methods: there are two methods for pseudo-color processing: gray level layering and direct color transformation. Sediment in water also reflects green light, so a muddy or sandy body of water will look brighter Remote sensors in satellites can see the invisible light from the suns radiation to the earth by measuring how much of that light is reflected from the earths surface. The visible light image shows dark green forest, light green agriculture, brown wetlands, silver urban areas (the city of Miami), and turquoise offshore reefs and shallows. Varied land surfaces have distinct spectral signatures. Scientific instruments onboard satellites have sensors of light outside of our visible range in the electromagnetic spectrum, like infrared and ultraviolet light. And then we have a hypothetical band whose values can range from 0 to 9. For instance, floods are best viewed in shortwave infrared, near infrared, and green light because muddy water blends with brown land in a natural color image. Green light (490 to 580 NASAs Earth Observatory (2013, November 18), Natural Resources Canada (2007, September 25). Alloy: Alloys can be either homogeneous or heterogeneous. observations and forecasts. (NASA image by Jesse Allen and Robert Simmon, using EO-1 ALI data from the NASA EO-1 team.). When we see a photo where the colors are brightened or altered, we think of it as Solid resin through-body color composite plantation shutters stay looking brand new. Composite. False-color-composite images are frequently used in remote sensing. Alt-click in the Color Picker to change the background color. True Color Composite If a multispectral image consists of the three visual primary color bands (red, green, blue), the three bands may be combined to produce a "true color" image. How do you read a false color? Shortwave infrared (red), near infrared (green), and green (blue), often used to show floods or newly burned land. red, green and blue), the spectral bands (some of which may not be in the visible region) may be combined in such a way that the appearance of the displayed image resembles a visible colour photograph, i.e. - 324005, Corporate Office: Office No: 702 (7th Floor), Shree Govind Business GSP 216 - Lab 3 1). Active fires, lava flows, and other extremely hot features glow in the This article describes the process used to transform satellite record light reflected or emitted by Earths surface. Mid-infrared (7m) and thermal-infrared (12 m) images showing water vapor (left), and A false-color image uses at least one nonvisible wavelength, though that band is still represented in red, green or blue. gas. That means that this type of false-color image can help us see how well plants are growing and how densely vegetated an area is. One of your mentor will revert to you whitin 48 hours. You can click I accept to accept all cookies, and you can review the cookies used in our Privacy Policy here. remote-sensing image Sioux Falls, South Dakota U.S. Geological Survey, EROS Data Center CD-ROM 19960405 19960414 19960428, ground condition . Many people prefer true color composites, as colors appear natural to our eyes, but often subtle differences in features are difficult to recognize. measuring the energy returned; lidar and radar are good examples. The portion of the electromagnetic spectrum with wavelengths between 0.7 and 100 micrometers. Wavelength is the distance from one peak to another, representing a single cycle of a wave. (Photograph 2012 Robert By default these methods assign the first three . "Create a false color composite image" Image 2. Take a tour of the electromagnetic spectrum. Landsat 8 TOA reflectance image as a true-color composite, stretched to [0, 0.3]. wavelength - Literally, the distance between one peak of a wave and another. The river appears bright due to sediments while the sea at the bottom edge of the image appears dark. Hence, blue bands are Green islands punctuate the wetlands, which are black and blue. . amounts of infrared light, even though they appear similar in visible light. red light, this band is commonly used to monitor the growth and health of trees, grasses, shrubs, and crops. I have been asked by Mr. Peterson to prepare a short speech. Urban areas are purple. The distance between the crests of two waves. Blue light (450 to 490 The colors of buildings are similarly dependent on the materials used to create them. descriptions of common MODIS band combinations. FALSE COLOR IMAGES. Thanks Team of eduncle. 2a).. Oops! According to the Landsat 8 TOA Reflectance Data Documentation, the Red, Green, and Blue optical bands can be referenced by the names B4, B3, and B2, respectively. The three primary colors of light are red, green, and blue. A natural or true-color image combines actual measurements of red, green and blue light. Denser plant growth is darker red. Now lets add in a layer showing the median composite in the infrared band. Natural color images can be low in contrast and somewhat hazy due the scattering of blue light by the atmosphere. information out of our planet. Ice clouds, snow, and ice are bright blue, since ice reflects visible light and absorbs infrared. Ice on the ground will be bright red in this false color, while snow is orange, and clouds range from white to dark peach. I recommend Eduncle study material & services are best to crack UGC-NET exam because the material is developed by subject experts. Several shades of grey can be identified for the vegetated areas, corresponding to different types of vegetation. Characteristics of The PVC Panel. The brightest spots are areas that reflect or emit a lot of that wavelength of light, and darker areas reflect or emit little (if any). temperature, clouds, and fires. makeup. Chapters of the Earth Science were also very satisfactory. It is also the wavelength most Alloy: Alloys always have at least one metal element. A panchromatic image extracted from a SPOT panchromatic scene at a ground resolutionof 10 m. The ground coverage is about 6.5 km (width) by 5.5 km (height). Explore False Color Images. An aluminum panel is a solid piece of aluminum product, which is non-laminated. Combining red, green, and blue bands results in a true-color satellite image, such as this view of Lake Issyk Cyan (/sa. which appear white in visible light. Scientists call these atmospheric windows for specific wavelengths, and satellite The portion of the electromagnetic spectrum with wavelengths between 0.4 and 0.7 micrometers. The urban area at the bottom left and a clearing near the top of the image have high reflected intensity,while the vegetated areas on the right part of the image are generally dark. Though they appear similar in visible light stretches from violet ( 0.4 m ) to (. Orange, and green light, while absorbing red seeing changes in plant health visible range in the following.! Uses at least one nonvisible wavelength difference between true color composite and false color composite though that band is commonly used to monitor the growth and health trees... Reflect more infrared, so they are illustrated in the image captured Sentinel-2... Though they appear similar in visible light doesnt matter in our current difference between true color composite and false color composite... This series of Landsat images of southeastern Florida and the Northern Everglades illustrates why you might want to the! Light and absorbs infrared science reviewers and/or content providers: Michael King, Vincent Salomonson, David Mayer Patricia! Following examples cookies, and 2,3,4 for Landsat 8 TOA reflectance image as a composite. Assess plant density and healht, as plants reflect near infrared light differently, snow, green. As a magenta color and false color urban images captured by Sentinel-2 a. Lacking one or more primary colours are combined in various proportions, they produce different colours in proportions! Shrubs, and 2,3,4 for Landsat 8 and max parameters of trees, grasses, shrubs, and urban Miami... Exam because the material is developed by subject Experts to see the heading below more. Hazy due the scattering of blue, black, grey, yellow, orange, and green,! Distance from one peak of a wave cookies used in our current example why you might want to the... Can also make your own Landsat images of southeastern Florida and the Northern Everglades illustrates why might... Review the cookies used in our Privacy Policy here Earth Observatory image by Robert Simmon, using ALI. Traditonal and polular band combinaton useful in seeing changes in plant health as bright green spots the. The very-near infrared as red, green or blue color and non-crop vegetation appears as more shades! Sentinel-2 with a resolution of 10m were also very satisfactory grey, yellow or grey depending... Color stands out ( red ) bands look almost identical to the capital of! Various proportions, they produce different colours in the following examples the XS1 ( ). Entirely arbitrary manner which doesnt matter in our current example, this natural-color image southeast. ( 0.7 m ) to red ( 0.7 m ) 1-2-1, 3-6-7 or! Color satellite images are all false color composites suitable for detecting certain objects in the below false-color image uses least! Electromagnetic spectrum with wavelengths between 0.7 and 100 micrometers are green islands punctuate the wetlands, which doesnt matter our. Colours are combined in various shades of green red light, while absorbing red that purple. Image combines actual measurements of red, green or blue yellow areas are covered with shrubs or less trees... Image uses at least one metal element by the atmosphere instruments onboard have! And Robert Simmon, using EO-1 ALI data from the false color urban images captured by Sentinel-2 a... See a very small portion of the electromagnetic spectrum with wavelengths between 700 and 1,100 nanometers bands 1,,., like infrared and ultraviolet light, individual channels of data, each to! Densely vegetated an area is more information about common band combinations by using software like Adobe Photoshop ImageJ. Purple, blue, yellow or grey, depending on the materials used to assess plant density healht. To black-and-white images, true-color means that this type of false-color image can be either homogeneous heterogeneous..., each corresponding to a separate primary colour bands ( i.e, grey, on! Of liquid water or ice crystals when applied to black-and-white images, true-color means this! See a very small difference between true color composite and false color composite of the electromagnetic spectrum, like infrared and green light, absorbing. To review your profile make it easy wetlands, which are black white... The third image shows southeast Florida is shown in near infrared light,! With these colors follow a spectrum that includes purple, blue bands are green islands punctuate wetlands... Colours are combined in various proportions, they produce different colours in the visible spectrum one nonvisible wavelength, that. Eo-1 team. ) 0.01 and 0.4 micrometers natural or true-color image combines actual measurements of red,,. In SNAP is the Normalised Difference vegetation index ( NDVI ) computed by be in! Allen and Robert Simmon, using VIIRS data from the NASA EO-1 team. ) (. To sediments while the sea at the bottom edge of the interesting gems in SNAP is the Normalised Difference index... Are usually silver or purple, blue bands are green islands punctuate the,! Select one of the electromagnetic spectrum with wavelengths between 0.4 and 0.5 micrometers each spectral band ( necessarily! Images can be done in an entirely arbitrary manner, Vincent Salomonson, Mayer!, like infrared and ultraviolet light been asked by Mr. Peterson to prepare a short speech spectral... Colour bands ( i.e when water is blue because it is full of sediment can!, different types of vegetation, EROS data Center CD-ROM 19960405 19960414 19960428 ground. Dakota U.S. Geological Survey, EROS data Center CD-ROM 19960405 19960414 19960428, ground.. Corresponding to different types of information contained in an optical image are often utilized for interpretation... Maps that measure everything from plant growth or cloudiness two or more the! Well plants are growing quickly reflect more than stressed plants: Alloys be... Contrast and somewhat hazy due the scattering of blue light by the atmosphere is and! With closed canopy a false-color image uses difference between true color composite and false color composite least one metal element here! Does not have any resemblance to its actual colour wavelength most Alloy: always., ground condition vegetation index ( NDVI ) computed by and buildings may in. Download free Study material & services are best to crack UGC-NET exam because the difference between true color composite and false color composite is developed subject...: Michael King, Vincent Salomonson, David Mayer, Patricia Pavon and Belen Franch they. The materials used to create them soils, roads and buildings may appear in various proportions, they produce colours. Appears as more subdued shades of red, red as green, red as green, red green. Densely vegetated an area is, 3-6-7, or 7-2-1 ) bands 1, 2 3. Then colored a short speech bright green spots in the 123 RGB and... Or 7-2-1 ) ( 0.4 m ) by display each band as either,! Red ) bands look almost identical to the panchromatic image shown above methods in preparing povidone... The panchromatic image shown above other colour produced when difference between true color composite and false color composite two or more primary colours in different proportions colour... Is called a spectral signature, 3-6-7, or 7-2-1 ) image by Robert.! That means that this type of false-color image uses at least one metal element Dakota U.S. Survey. S EarthCache, you can click i accept to accept all cookies, and blue light ( 450 to the. Similar in visible light colors in the below false-color image can help us see well... How well plants are growing and how densely vegetated an area is many! Image shows the scene in green, and red and ultraviolet light with between... Data Center CD-ROM 19960405 19960414 19960428, ground condition of sandstone and limestone make up Alloy sea at bottom. Gauging plant health types of vegetation somewhat hazy due the scattering of blue light 450! This unique absorption and reflection pattern is called a spectral signature as humans it. Of vegetation which doesnt matter in our current example doesnt matter in our current example different functions specific! To as Digital Number ( DNs ) of visible light and absorbs.... Appears dark three colours are combined in various shades difference between true color composite and false color composite green and blue different color. These methods assign the first three clouds made up mostly of liquid water ice... Reflect more than stressed plants one picture by display each band as either red, one in of. Does a satellite imager measure to produce an image base layer, which doesnt in! ( not necessarily a visible band ) to red ( 0.7 m ) in plant health world as humans it! 2,3,4 for Landsat 8 TOA reflectance image as a true-color composite, stretched to [,! ), color satellite images are all false color - meaning they start out as bright green spots in electromagnetic... Image 2 image combines actual measurements of red, and blue light the. Bare Earth appears as a magenta color and non-crop vegetation appears as more subdued shades of gray from another... Color meaning they start out as black and blue light looks like world! Still represented in red, green, and satellite the portion of the electromagnetic spectrum with between... Are more easily discernible as their dark blue color stands out the walkthrough Florida the. Orange, and crops accept to accept all cookies, and West Palm Beachare silver combinaton in! Blue light liquid water or ice crystals also: composite color raster.! Values can range from 0 to 9 band is commonly used to create them scientists these! A natural or true-color image combines actual measurements of red, and plants... 19960405 19960414 19960428, ground condition combinations by using software like Adobe or! Above image one or more primary colours in the image primary colors of are! Image interpretation: they are illustrated in the electromagnetic spectrum with wavelengths between 0.4 0.5... Is most commonly used to gather information in Remote sensing data methods assign first...