Image Processing Toolbox

Pixel Values and Statistics

The Image Processing Toolbox provides several functions that return information about the data values that make up an image. These functions return information about image data in various forms, including:

• The data values for selected pixels (pixval, impixel)
• The data values along a path in an image (improfile)
• A contour plot of the image data (imcontour)
• A histogram of the image data (imhist)
• Summary statistics for the image data (mean2, std2, corr2)
• Feature measurements for image regions (imfeature)

Terminology

Pixel Selection