Image charcoal
View API docs →Stylise an image with a charcoal-sketch effect — high-contrast edges with soft mid-tones. Configurable radius and intensity.
POST
/api/image-charcoal·cap 8.0 MiB·2 cost unit(s)More Image effects
See all →Auto-enhance
Apply a sensible-default tonal correction (auto-levels + auto-contrast).
CLAHE (adaptive histogram equalize)
Apply CLAHE (contrast-limited adaptive histogram equalisation) to an image.
Edge detect (Canny)
Detect edges in an image (Canny edge detection).
Image blur
Apply a Gaussian blur to an image.
Image color replace
Replace one colour in an image with another.
Image grayscale
Convert an image to greyscale using a configurable luminance method.
Image modulate
Adjust hue, saturation, and brightness in one pass.
Image pixelate
Pixelate an image (mosaic effect).
Image quantize
Reduce an image to a fixed colour palette.
Image sepia
Apply a sepia tone to an image.
Image sharpen
Sharpen an image (unsharp mask).
Image threshold
Convert an image to pure black-and-white using a brightness threshold.