I’ve published image version 0.35.0 which focuses primarily on contrast management of an image. Here’s the changelog:
Breaking change
-
Removes
Image.autolevel/1which is replaced byImage.equalize(image, :each). -
Removes
Image.normalize/1which is replaced byImage.equalize(image, :luminance).
Enhancements
-
Adds
Image.equalize/2which expands an image to fill the tone range. Equalization can be performed on all bands, on each band or only on the luminance band. This function replacesImage.normalize/1andImage.autolevel/1. -
Adds
Image.contrast/2to apply simple contrast adjustments to an image. The contrast parameter is provided as a float >= 0.0 with contrast less than 1.0 meaning reduce contrast and greater than 1.0 meaning increase contrast. -
Adds
Image.apply_tone_curve/2which applies a tone curve to an image. This is typically used to affect overall image contrast. -
Adds
Image.local_contrast/2which applies a Constrast Limited Adaptive histogram equalization (CLAHE) to improve local contrast in images. -
Adds
Image.sharpen/2to apply sharpening to an image. -
Adds
Image.modulate/2to adjust an image using brightness, saturation, hue rotation and lightness in a single call. -
Adds
Image.band_format/1to return the band format of an image inNxnotation. -
Adds
Image.with_band_format/3to cast an image to a new band format, execute a function on the cast image and then re-cast the image back to its original band format if the function returns successfully. -
Adds
Image.range/1that returns the possible range of values for a pixel as a tuple in the form{min_value, max_value}. -
Adds
Image.reduce_noise/2andImage.reduce_noise!/2that applies a median filter to reduce salt and pepper noise in an image.
