Keeps the saturation and hue of the foreground color, while using the luminosity of the backdrop. This preserves gray levels and can be used to colorize the foreground image.

Darkens the backdrop according to the value of the foreground color: the darker it is, the more its color affects the backdrop. Black on the foreground image leads to black.

Lightens the backdrop according to the value of the foreground color: the brighter it is, the more its color affects the backdrop. White on the foreground image leads to white.

Selects, for each pixel, the darkest color of the backdrop or the front image.

Substracts the darker color to the lighter one. Black on the foreground has therefore no effect, white leads to the color of the backdrop, inverted.

Similar to difference but produce a result with less contrast. Like for difference, black on the foreground has no effect, while white leads to the color of the backdrop, inverted.

Acts as multiply or screen depending of the color of the foreground image for a given pixel. It reproduces an effect next to shining a harsh spotlight on the backdrop. This is similar to overlay but with the top and bottom color swapped.

Keeps the hue of the foreground color, while using the saturation and luminosity of the backdrop.

Selects, for each pixel, the lightest color of the backdrop or the front image.

Keeps the luminosity of the foreground color, while using the saturation and hue of the backdrop.

Indicates that the blended color is the multiplication of the front color and the one of the background. Multiplication of colors always result in a color as dark as the original ones. To the limit, multiplying with black results in black, and multiplying with white results in the other original color.

Indicates that no blending will happen: the selected color is the one of the image on the top, and not the one of the backdrop.

Acts as multiply or screen depending of the color of the background image for a given pixel. This is similar to hard-light but with the top and bottom color swapped.

Keeps the saturation of the foreground color, while using the hue and luminosity of the backdrop. A backdrop with no saturation, that is a pure grey, will lead to no change to the foreground image.

Simulates the simultaneous projection of the two images on a screen: the resulting color is always as light as the original ones. To the limit, multiplying with black results in the other original color, and multiplying with white results in white.

Similar to hard-light and darkens or lightens the colors, depending of the foreground color. It leads to an effect next to shining a diffused spotlight on the backdrop.