colorops - image

Structs

BiLevel A bi-level color map

Traits

ColorMap A color map

Functions

brighten Brighten the supplied image. value is the amount to brighten each pixel by. Negative values decrease the brightness and positive values increase it.
brighten_in_place Brighten the supplied image in place. value is the amount to brighten each pixel by. Negative values decrease the brightness and positive values increase it.
contrast Adjust the contrast of the supplied image. contrast is the amount to adjust the contrast by. Negative values decrease the contrast and positive values increase the contrast.
contrast_in_place Adjust the contrast of the supplied image in place. contrast is the amount to adjust the contrast by. Negative values decrease the contrast and positive values increase the contrast.
dither Reduces the colors of the image using the supplied color_map while applying Floyd-Steinberg dithering to improve the visual conception
grayscale Convert the supplied image to grayscale. Alpha channel is discarded.
grayscale_alpha Convert the supplied image to grayscale. Alpha channel is preserved.
grayscale_with_type Convert the supplied image to a grayscale image with the specified pixel type. Alpha channel is discarded.
grayscale_with_type_alpha Convert the supplied image to a grayscale image with the specified pixel type. Alpha channel is preserved.
huerotate Hue rotate the supplied image. value is the degrees to rotate each pixel by. 0 and 360 do nothing, the rest rotates by the given degree value. just like the css webkit filter hue-rotate(180)
huerotate_in_place Hue rotate the supplied image in place.
index_colors Reduces the colors using the supplied color_map and returns an image of the indices
invert Invert each pixel within the supplied image. This function operates in place.