1Pamdice User Manual(0) Pamdice User Manual(0)
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6 pamdice - slice a Netpbm image into many horizontally and/or vertically
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10 $ pamdice myimage.ppm -outstem=myimage_part -width=10 -height=8
11 $ pamundice myimage_part_%1d_%1a.ppm -across=10 -down=8 >myimage.ppm
12 $ pamdice myimage.ppm -outstem=myimage_part -height=12 -voverlap=9
14
18 pamdice
19 -outstem=filenamestem
21 [-width=width]
23 [-height=height]
25 [-hoverlap=hoverlap]
27 [-voverlap=voverlap]
29 [-verbose]
31 [filename]
33 You can use the minimum unique abbreviation of the options. You can
35 use two hyphens instead of one. You can separate an option name from
36 its value with white space instead of an equals sign.
37
40 This program is part of Netpbm(1).
41 pamdice reads a PAM, PBM, PGM, or PPM image as input and splits it hor‐
43 izontally and/or vertically into equal size pieces and writes them into
44 separate files as the same kind of image. You can optionally make the
45 pieces overlap.
46 See the -outstem option for information on naming of the output files.
48 The -width and -height options determine the size of the output pieces.
50 pamundice can rejoin the images. For finer control, you can also use
52 pnmcat.
54 One use for this is to make pieces that take less computer resources
56 than the whole image to process. For example, you might have an image
57 so large that an image editor can't read it all into memory or pro‐
58 cesses it very slowly. With pamdice, you can split it into smaller
59 pieces, edit one at a time, and then reassemble them.
60 Another use for this is to print a large image in small printer-sized
62 pieces that you can glue together. ppmglobe does a similar thing; it
63 lets you glue the pieces together into a sphere.
64 If you want to cut pieces from an image individually, not in a regular
66 grid, use pamcut.
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71 In addition to the options common to all programs based on libnetpbm
72 (most notably -quiet, see
73 Common Options ⟨index.html#commonoptions⟩ ), pamdice recognizes the
74 following command line options:
75 -outstem=filenamestem
79 This option determines the names of the output files. Each out‐
80 put file is named filenamestem_y_x.type where filenamestem is
81 the value of the -outstem option, x and y are the horizontal and
82 vertical locations, respectively, in the input image of the out‐
83 put image, zero being the leftmost and top, and type is .pbm,
84 .pgm, .ppm, or .pam, depending on the type of image.
85 -width=width
88 gives the width in pixels of the output images. The rightmost
89 pieces are smaller than this if the input image is not a multi‐
90 ple of width pixels wide.
91 -height=height
94 gives the height in pixels of the output images. The bottom
95 pieces are smaller than this if the input image is not a multi‐
96 ple of height pixels high.
97 -hoverlap=hoverlap
100 gives the horizontal overlap in pixels between output images.
101 Each image in a row will overlap the previous one by hoverlap
102 pixels. By default, there is no overlap.
103 This option was new in Netpbm 10.23 (July 2004).
105 -voverlap=voverlap
108 gives the vertical overlap in pixels between output images.
109 Each row of images will overlap the previous row by voverlap
110 pixels. By default, there is no overlap.
111 This option was new in Netpbm 10.23 (July 2004).
113 -verbose
116 Print information about the processing to Standard Error.
117
122 pamdice was new in Netpbm 9.25 (March 2002).
123 Before Netpbm 10.29 (August 2005), there was a limit of 100 slices in
125 each direction.
126
129 pamundice(1), pamcut(1), pnmcat(1), pgmslice(1), ppmglobe(1) pnm(1)
130 pam(1)
131
133 This manual page was generated by the Netpbm tool 'makeman' from HTML
134 source. The master documentation is at
135 http://netpbm.sourceforge.net/doc/pamdice.html
137netpbm documentation 01 April 2007 Pamdice User Manual(0)