SOD C/C++ API Reference - Image Processing
Syntax
sod_img sod_equalize_histogram(sod_img input);Description
Equalize the image histogram. This works only on grayscale images. If you want to convert the colorspace of your input picture to the gray color model, call sod_grayscale_image(), sod_grayscale_image_3c() before or simply load your image from disk using the macro sod_img_load_grayscale(). A typical input image after histogram equalization should look like the following:
Input Picture
After Processing via sod_equalize_histogram()
Parameters
sod_img input
The input image to be processed which must be in the grayscale colorspace. The image can be loaded from disk using sod_img_load_from_file(), from memory (i.e. network socket) via sod_img_load_from_mem() or dynamically created via sod_make_image().
Return Value
Processed image is returned in an instance of the sod_img object. if something goes wrong during processing, then an empty image is returned via sod_make_empty_image(). Once done, you must release the memory allocated to this object via sod_free_image() to avoid memory leaks.
Example
Checkout the introduction course, the C/C++ samples on the download page or refer to the SOD Github Repository.
See also
sod_canny_edge_image • sod_hilditch_thin • sod_image_find_blobs • sod_hough_lines_detect • sod_crop_image • sod_composite_image.
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