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: http://www.atnf.csiro.au/computing/software/miriad/doc/imcmp.html
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Task: imcmp Purpose: Compare two images Categories: map analysis IMCMP is a MIRIAD task to compare two images. The maps must have the same dimensions. The two images are compared on a pixel by pixel basis, within a user defined region. Key: in1 The first input image. No default Key: in2 The second input image. No default Key: region Region to select data to compare. Only pixels where both input maps were unmasked will be compared. Only a rectangular region of interest is supported. Key: cut Cutoff applied to data. By default not used, all data used. Key: tol Tolerance when comparing the absolute difference between the two maps on pixel by pixel basis. Default: 0 Key: device PGPLOT Plotting device. Default: no plot. Key: limx Minimum and maximum for plotting the pixel values of image 1. Default: autoscaling. Key: limy Minimum and maximum for plotting the pixel values of image 2 Default: autoscaling. Key: log File in which to write the data (as two columns). Default: no logfile.