Image Processing with CV2
A histogram shows how frequently various color values occur in the image.
cv2.calcHist(images, channels, mask, histSize, ranges)
images
: the source image of typeuint8
orfloat32
channels
: the index of channel for which we calculate histogram. For grayscale image, its value is [0] and color image, you can pass [0], [1] or [2] to calculate histogram of blue, green or red channel respectivelymask
: mask image. To find histogram of full image, it is given as “None”.histSize
: this represents our BIN count. For full scale, we pass [256].ranges
: Normally, it is [0, 256].
Posted on July 14, 2021
Tags: Python