You have the option of viewing the image as a composite of all or some of the different channels, as individual channels, or as individual greyscale channels. Each channel is kept separate from the others and can be turned on or off using the ‘Channels Tool’ ( Image › Color › Channels Tool).The advantages of using this type of image instead of RGB images include: Both “layers” and “channels” are the same idea. In Photoshop these images are made of “layers”, and in Fiji they are made of “channels”. Native functions can be found in Image › Color.Ī color composite image is similar to the color images one would find in the image processing software Photoshop. the green in an RGB image reflects green color in the specimen). The colors are designed to reflect genuine colors (i.e. The colors in RGB images (24-bit with 8-bits for each of the red, green and blue channels) are used to show multi-channel images. Differences in color in the pseudo-colored image reflect differences in intensity of the object rather than differences in color of the specimen that has been imaged. Instead of displaying grey, the image displays a pixel with a defined amount of each color. This is a table of grey values (zero to 256 or 4095 whether 8-bit or 12-bit grey) with accompanying red, green and blue values. grey) image that has color ascribed to it via a “Look Up Table” or LUT (a.k.a. Pseudo-colorĪ pseudo-colored image has a single channel, (i.e. Even if I open a GIF image (whose file format uses a index of 256 colours), when I click the foreground colour in the toolbox, it opens the OS system colour picker, rather then showing the color palette of that GIF file.When I try to save any random image as a "Color Table (*.PAL)" I get a non-descript error that the document could not be saved (without telling why not).I could not find any information in the manual, and whatever I found on-line seemed to apply to older versions of GraphicConverter (6 or earlier).Yesterday, I bought an upgrade to GC 9, due to the announced feature "Reduce to Palette" in GC 9.6 (I only had licences for GC 1, GC 4, GC 6 and GC 7 previously), but didn't see this feature.In short, I'm at a complete loss here.Images with color come in three different forms: pseudo-color, 24-bit RGB image, or color composite image. The Colors > Reduce to Palette submenu seems very promissing, but the Dither option does not seem to do anything, and the "Show Palettes in Finder" opens a empty folder.I can't seem to show a color palette in the first place. option seems to reduce the amount of colours used, but does not change the depth of the image to a palette. In the "New Image." dialog, the Depth pop-up only allows me to choose 32- or 64- bit colour depths, but not 8-bit, let alone index-based color palettes.The Pictures > Colors > Change Color Usage Dynamically. For starters, the current version of GC does not allow me to create a palette-based image. Hi,I'm trying to do two things:Create a restricted color palette (with about 16 colours)Convert an image to only use colours from this color palette.The actual use case is that I like to recreate an image with tiles in real life, and want to get a sense how this will look with a limited number of colours.Any help accomplishing either task would be highly appreciated!I'm have trouble accomplishing this.
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