How do I create a true-color image from LandSat imagery in which each color channel (red, green, and blue) is stored in separate TIFF files?
Using Global Mapper v5.08 and above, you can do this using the blend mode functionality accessible from the Overlay Control Center. First, load the three TIFF files containing the separate color channels. Then, open the Overlay Control Center (under the Tools menu or press Alt+C) and select the layer containing the red colors. Press the Options button and change the Blend Mode selection to Keep Red, then press OK. Repeat this for the blue and green layers (selecting the Keep Blue and Keep Green blend modes respectively). After doing that you should have a color image in the main view area, but it may still be hard to see. To improve that, select all three of the layers and press Options, then enable the Auto-Adjust Contrast setting and press OK. In many cases this will generate a very visually appearing image, that can then be saved to a single full-color image using the GeoTIFF, BIL/BIP/BSQ or JPG export options.
Related Questions
- How do I create a true-color image from LandSat imagery in which each color channel (red, green, and blue) is stored in separate TIFF files?
- How can I create an image from a buffer of raw image data (red, green, and blue values for each pixel)?
- Is there an online generator to create a red/blue 3D image?
