image_normalize, an Octave code which reads image data from a file, converts it (if necessary) to grayscale, resizes it to H pixels by W pixels.
This simple program is useful, for example, in a facial recognition study, when a set of images of varying sizes and types needs to be standardized to grayscale of a given shape, before a common processing function is applied.
The information on this web page is distributed under the MIT license.
image_normalize is available in a MATLAB version and an Octave version.
image_components, an Octave code which seeks the connected "nonzero" or "nonblack" components of an image or integer vector, array or 3D block.
image_contrast, an Octave code which applies image processing techniques to increase the contrast in an image.
image_denoise, an Octave code which applies image processing techniques to remove noise from an image.
image_edge, an Octave code which demonstrates a simple procedure for edge detection in images.
image_noise, an Octave code which adds noise to an image.
image_quantization, an Octave code which demonstrates how the KMEANS algorithm can be used to reduce the number of colors or shades of gray in an image.
image_rgb_to_gray, an Octave code which makes a grayscale version of an RGB image.
image_threshold, an Octave code which makes a black and white version of a grayscale image by setting all pixels below or above a threshold value to black or white.