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diff --git a/upstream/fedora-40/man1/pamsharpmap.1 b/upstream/fedora-40/man1/pamsharpmap.1 new file mode 100644 index 00000000..7523acf6 --- /dev/null +++ b/upstream/fedora-40/man1/pamsharpmap.1 @@ -0,0 +1,85 @@ +\ +.\" This man page was generated by the Netpbm tool 'makeman' from HTML source. +.\" Do not hand-hack it! If you have bug fixes or improvements, please find +.\" the corresponding HTML page on the Netpbm website, generate a patch +.\" against that, and send it to the Netpbm maintainer. +.TH "Pamsharpmap User Manual" 0 "07 February 2004" "netpbm documentation" + +.SH NAME +pamsharpmap - create map of sharpness in a PNM/PAM image + +.UN synopsis +.SH SYNOPSIS +\fBpamsharpmap\fP [\fIimagefile\fP] + +.UN description +.SH DESCRIPTION +.PP +This program is part of +.BR "Netpbm" (1)\c +\&. +.PP +\fBpamsharpmap\fP reads a Netpbm image (PNM or PAM) and produces +an image that shows how sharp it is at each location. +.PP +Sharpness is a measure of how suddenly (in space) colors change in +the image. \fBpamsharpmap\fP computes the sharpness of each +component color (R, G, B) separately and produces a pixel whose +intensity of each component color is directly proportional to the +sharpness of that component color at the same location in the input +image. Thus, at a point where the image is very sharp in its red and +green components, but dull in its blue component, you will see a +yellow pixel in the output. +.PP +\fBpamsharpmap\fP computes sharpness at a point simply as the +average difference in intensity between the pixel at that point and +the 8 pixels surrounding it. +.PP +At the edges of the image, where there are not 8 pixels surrounding +a pixel, \fBpamsharpmap\fP assumes the image is extended with a black +border. +.PP +\fBpamsharpmap\fP assumes that the image is a PNM or PNM +equivalent PAM. If it isn't, the results are not necessarily +meaningful. +.PP +The output image is the same dimensions, depth, and tuple type as +the input, and has maxval 255. + +.UN options +.SH OPTIONS +.PP +There are no command line options defined specifically +for \fBpamsharpmap\fP, but it recognizes the options common to all +programs based on libnetpbm (See +.UR index.html#commonoptions + Common Options +.UE +\&.) + +.UN seealso +.SH SEE ALSO +.BR "pamsharpness" (1)\c +\&, +.BR "pammasksharpen" (1)\c +\&, +.BR "pamedge" (1)\c +\&, +.BR "pam" (1)\c +\&, +.BR "pnm" (1)\c +\& + +.UN history +.SH HISTORY +.PP +\fBpamsharpmap\fP was added to Netpbm in Release 10.21 (March +2004). Bryan Henderson derived it from the program \fBpnmsharp\fP by +B.W. van Schooten and distributed as part of the Photopnmtools +package. +.SH DOCUMENT SOURCE +This manual page was generated by the Netpbm tool 'makeman' from HTML +source. The master documentation is at +.IP +.B http://netpbm.sourceforge.net/doc/pamsharpmap.html +.PP
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