Edges

Derivatives

Download MATLAB code and sample images: deriv.zip

example 1	example 2	example 3
example 4	example 5

Miscellaneous

Download MATLAB code and sample images: misc.zip

• find edges
• filters
• ruler, versions 1  2
• unsharp masking

Target Feature Identification

Download MATLAB code target.zip (image in deriv.zip)

• target1, use linked edges to measure checker widths
• target2, checkerboard “bow-tie” intersections

Maintained by John Loomis, last updated 11 March 2011