The Palette Editor is a tool to change image colors. The Color palette displays the color values for the current foreground and background colors. Changing the palette will change the color of the image. The palette editor uses RGB(red, green and blue) model to store image colors. Using this model, each of the 256 colors are stored as some blend of varying quantities of red, green and blue. Any or all of the three components can be changed at any entry at color table to change the color displayed for the pixel value of a image.
A Palette Editor Window is used for editing images colors. To start the palette editor, you can either select the "New Palette" option from the Palette menu in the Image Window, or press the "Palette" button in the Animation Window
The Palette Editor has several sections for palette control. The left of the window is "Undo" button for keeping tracks of the color table. The middle is four color panels, the edited color panel, red color panel, green color panel and blue color panel. The right of the window is the control and selection buttons such as "flip", "fiddle", "random", "point", "line" and so on. The following is an example of the Palette Editor Window.
JHV provides several predefined color scales. Users can select a predefined color scale and modify it to make the best color palette for the image.
To save the new palette table and attach it to the image, you select the "Set Palette" option from Palette menu in the Image Window before you exit the palette editor window.