An image transform can be applied to an image to convert it from one domain to another. Viewing an image in domains such as frequency or Hough space enables the identification of features that may not be as easily detected in the spatial domain. Common image transforms include:
You can apply image transforms in MATLAB with Image Processing Toolbox, which provide image transforms, tools, and a comprehensive environment for data analysis, visualization, and algorithm development. The products also let you perform geometric transformations.
See also: Steve on Image Processing, image enhancement, digital image processing, image segmentation, geodesy, map projection, image analysis, geometric transformations and image registration, image and video processing