1 HISTO_DOUBLE Histogram of an image as a function of another one
HISTO_DOUBLE
Computes the histogram of an image (Y_image) as a function of a sec-
ond one (Z_image). This gives an information similar to, but
slightly different from the cross histogram (cf HISTO_CROSS). The
program computes histogram of the mean value and standard deviation.
The result is a table of 4 Columns, in which
1) the first column contains the mean value of the Y_image (average
of all pixels in the Y_image for which the Z_image value is included
in the corresponding slot)
2) the second the standard deviation (of the Y_image values).
3) the third the number of pixels of the Y_image used to compute
the mean and deviation.
4) the fourth column contains the histogram abscissa (actual value
of the input Z_image)
2 Z_NAME$
TASK\FILE "First input image" Z_NAME$
This is the name of the input image that defines the histogram slots.
2 Y_NAME$
TASK\FILE "Second input image" Y_NAME$
This is the name of the input image that defines the histogram values.
2 Y_BLC$
TASK\INTEGER "Bottom left corner" Y_BLC$[4]
This is the position (in pixels) of the Bottom Left Corner of the part
of both maps that will be used to compute the histogram.
2 Y_TRC$
TASK\INTEGER "Top right corner" Y_TRC$[4]
This is the position (in pixels) of the Top Right Corner of the part of
both maps that will be used to compute the histogram.
2 X_BIN$
TASK\INTEGER "Number of histograms bins" X_BINS$
This is the number of histogram slots that will be defined within the
values of the first image.
2 X_MIN$
TASK\REAL "Minimum value" X_MIN$
This is the value (of the first image) corresponding to the lowest bin.
2 X_MAX$
TASK\REAL "Maximum value" X_MAX$
This is the value (of the first image) corresponding to the highest bin.
2 X_NAME$
TASK\FILE "Output histogram name" X_NAME$
This is the name of the output histogram.
1 ENDOFHELP