At this point it is natural to think about having a Histogram class with
methods such as:
// getters
bins, height, cumulative(is it ordinary or cumulative histogram),
min_count, max_count, min_pixel_value, max_pixel_value,
background and foreground colors, etc.
// statistics
mean, deviation, median, npixels, etc. like in Photoshop.
This will lead to nice simplification from:
histogram_draw (ImageBuf &R,
const std::vector<imagesize_t> &histogram,
int height = 100,
Color foreground = Color(0,0,0),
Color background = Color(1,1,1));
to:
histogram_draw (ImageBuf &R, Histogram histogram);
Let me know if you want something included in the class.
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