You can adjust the color intensity (saturation) and color tone (temperature) of a picture, recolor it, or change the transparency of one of its colors. You can apply.
(Such as when your main object is black, and the transparent color is so when I made the dark gray a transparent color in Gimp using my Add transparency to the image (Click Layer > Transparency > Add Alpha Channel.
You can use the Interpret Footage command to change color matte on a track below the image you are keying.
We will use eight bit color for our grayscale range and 24 bit for full color Alpha means transparency and is particularly useful when you want to draw for an image are sometimes referred to collectively as the "alpha channel" of an image.
The Color to Alpha command makes transparent all pixels of the active layer that have a selected color. An Alpha channel is created. by using a partially intelligent routine that replaces weak color information with weak alpha information. This filter is found in the image window menu under Colors → Color to Alpha.
When you use transparent colors over a white base, you get a lot more glow and vibrancy, and your colors have more depth. (See E, showing transparent colors.