Inverts the colors of the open bitmap like a negative in photography.

Modifies the intensity (brightness) of the open bitmap. You can enter any value between –1,000 and +1,000.

Increases or reduces the contrast of the open bitmap. You can enter any value between -1000 and +1000.

Controls and modifies the intensity of the colors in the open bitmap based on the gamma constant.
Intensity values ideally follow a logarithmic progression, because the eye perceives changes in intensity as being equal when the ratio of change is equal. So we perceive a change from 0.1 to 0.2 to be equal to a change from 0.2 to 0.4. The gamma constant is used to calculate the progression.
For most monitors, this constant is between 2.2 and 2.5.

Modifies the color depth of the open bitmap. You can enter any value between 32 bit and 1 bit.
Moreover, you can select the color palette and calculation method.

Increases or reduces the color saturation of the open bitmap. You can enter any value between -1000 and +1000 (as a percentage).

Simulates the effect resulting from the inadvertent exposure of a roll of film to light.
To achieve this effect, the program inverts the color data that are greater or equal to a value you specify.
You can enter any value between 0 and 255.

Changes the hue of the open bitmap. To achieve this, you can change the color angle.