Histogram Equalization Algorithm Implementation Using MATLAB
Histogram equalization is a method in image processing of contrast adjustment using the image's histogram. The histogram of a digital image is a distribution of its discrete intensity levels in the range [0,L-1]. The distribution is a discrete function h associating to each intensity level: r k the number of pixel with this intensity: n k . Normalization of a Histogram Normalize an histogram is a technique consisting into transforming the discrete distribution of intensities into a discrete distribution of probabilities. To do so, we need to divide each value of the histogram by the number of pixel. Because a digital image is a discrete set of values that could be seen as a matrix and it's equivalent to divide each n k by the dimension of the array which is the product of the width by the length of the image. Equalization of a Histogram Histogram equalization is a method to process images in order to adjust the contrast of an image by modifyin...