Local thresholding¶
// local thresholding and unsharp masking by median filtering // Other operations can be substituted for median filter // For unsharp masking just cancel thresholding // Rex Couture 11-13-03 // Based on macro by Gabriel Landini. Thanks to Wayne for help with Java.
Drag the file local_thresholding.ijm onto your ImageJ laucher window and run the macro from the macro editor.
run("Duplicate...", "title=Original"); run("32-bit"); run("Duplicate...", "title=Filtered"); a = getNumber("Radius", 7); selectWindow("Filtered"); run("Median...", "radius=" +a); run("Image Calculator...", "image1=Original operation=Subtract image2=Filtered create"); run("Rename...", "title=Result"); run("Threshold...");