Typical image dimensions are and . We read the image and extract the raw pixel data. The example images included in the ImageProcessing package are located in the Data directory of the root ImageProcessing directory. In a typical Windows installation the path may be as follows. The directory paths listed in this system variable are automatically searched for named files in an ImageRead operation.
Small values represent dark areas of an image, while large values represent bright pixels.
A color digital image is typically represented by a triplet of values, one for each of the color channels, as in the frequently used RGB color scheme. This yields a three-fold increase in the storage requirements for color versus monochrome images. Naturally, there are a number of alternative methods of storing the image data. Here we extract a 4x4 region and display it in a meshed format. Here, the same region of the color image is displayed in a planar format.