SGI Freeware 1999 August

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Text File | 1999-01-26 | 32.9 KB | 727 lines

ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) NNNNAAAAMMMMEEEE combine - combine images to create new images. SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS ccccoooommmmbbbbiiiinnnneeee [ _o_p_t_i_o_n_s ... ] _i_m_a_g_e _c_o_m_p_o_s_i_t_e [ _m_a_s_k ] _c_o_m_b_i_n_e_d DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN ccccoooommmmbbbbiiiinnnneeee combine images to create new images. EEEEXXXXAAAAMMMMPPPPLLLLEEEESSSS To combine a image of a cockatoo with a perch, use combine cockatoo.miff perch.ras composite.miff To compute the difference between images in a series, use combine -compose difference series.1 series.2 difference.miff To combine a image of a cockatoo with a perch starting at location (100,150), use combine -geometry +100+150 cockatoo.miff perch.ras composite.miff To tile a logo across your image of a cockatoo, use convert +shade 30x60 cockatoo.miff mask.miff combine -compose bumpmap -tile logo.gif cockatoo.miff mask.miff composite.miff OOOOPPPPTTTTIIIIOOOONNNNSSSS ----bbbblllleeeennnndddd _v_a_l_u_e blend the two images a given percent. ----ccccoooolllloooorrrrssss _v_a_l_u_e preferred number of colors in the image. The actual number of colors in the image may be less than your request, but never more. Note, this is a color reduction option. Images with less unique colors than specified with this option will have any duplicate or unused colors removed. Refer to qqqquuuuaaaannnnttttiiiizzzzeeee((((9999)))) for more details. Note, options ----ddddiiiitttthhhheeeerrrr, ----ccccoooolllloooorrrrssssppppaaaacccceeee, and ----ttttrrrreeeeeeeeddddeeeepppptttthhhh affect the color reduction algorithm. ----ccccoooolllloooorrrrssssppppaaaacccceeee _v_a_l_u_e the type of colorspace: GGGGRRRRAAAAYYYY, OOOOHHHHTTTTAAAA, RRRRGGGGBBBB, TTTTrrrraaaannnnssssppppaaaarrrreeeennnntttt, XXXXYYYYZZZZ, YYYYCCCCbbbbCCCCrrrr, YYYYIIIIQQQQ, YYYYPPPPbbbbPPPPrrrr, YYYYUUUUVVVV, or CCCCMMMMYYYYKKKK. Color reduction, by default, takes place in the RGB color space. Empirical evidence suggests that distances in color spaces such as YUV or YIQ correspond Page 1 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) to perceptual color differences more closely than do distances in RGB space. These color spaces may give better results when color reducing an image. Refer to qqqquuuuaaaannnnttttiiiizzzzeeee((((9999)))) for more details. The TTTTrrrraaaannnnssssppppaaaarrrreeeennnntttt color space behaves uniquely in that it preserves the matte channel of the image if it exists. The ----ccccoooolllloooorrrrssss or ----mmmmoooonnnnoooocccchhhhrrrroooommmmeeee option is required for this option to take effect. ----ccccoooommmmmmmmeeeennnntttt _s_t_r_i_n_g annotate an image with a comment. By default, each image is commented with its file name. Use this option to assign a specific comment to the image. Optionally you can include the image filename, type, width, height, or scene number by embedding special format characters. Embed %%%%ffff for filename, %%%%dddd for directory, %%%%eeee for filename extention, %%%%tttt for top of filename, %%%%mmmm for magick, %%%%wwww for width, %%%%hhhh for height, %%%%pppp for page number, %%%%ssss for scene number, %%%%bbbb for file size, or \\\\nnnn for newline. For example, -comment "%m:%f %wx%h" produces an image comment of MMMMIIIIFFFFFFFF::::bbbbiiiirrrrdddd....mmmmiiiiffffffff 555511112222xxxx444488880000 for an image titled bbbbiiiirrrrdddd....mmmmiiiiffffffff and whose width is 512 and height is 480. If the first character of _s_t_r_i_n_g is @@@@, the image comment is read from a file titled by the remaining characters in the string. ----ccccoooommmmppppoooosssseeee _o_p_e_r_a_t_o_r the type of image composition. By default, each of the composite image pixels are replaced by the cooresponding image tile pixel. You can choose an alternate composite operation: Over In Out Atop Xor Plus Minus Add Subtract Difference Bumpmap Page 2 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) Replace ReplaceRed ReplaceGreen ReplaceBlue ReplaceMatte How each operator behaves is described below. oooovvvveeeerrrr The result will be the union of the two image shapes, with _c_o_m_p_o_s_i_t_e _i_m_a_g_e obscuring _i_m_a_g_e in the region of overlap. IIIInnnn The result is simply _c_o_m_p_o_s_i_t_e _i_m_a_g_e cut by the shape of _i_m_a_g_e. None of the image data of _i_m_a_g_e will be in the result. OOOOuuuutttt The resulting image is _c_o_m_p_o_s_i_t_e _i_m_a_g_e with the shape of _i_m_a_g_e cut out. AAAAttttoooopppp The result is the same shape as image _i_m_a_g_e, with _c_o_m_p_o_s_i_t_e _i_m_a_g_e obscuring _i_m_a_g_e where the image shapes overlap. Note this differs from oooovvvveeeerrrr because the portion of _c_o_m_p_o_s_i_t_e _i_m_a_g_e outside _i_m_a_g_e's shape does not appear in the result. XXXXoooorrrr The result is the image data from both _c_o_m_p_o_s_i_t_e _i_m_a_g_e and _i_m_a_g_e that is outside the overlap region. The overlap region will be blank. PPPPlllluuuussss The result is just the sum of the image data. Output values are cropped to 255 (no overflow). This operation is independent of the matte channels. MMMMiiiinnnnuuuussss The result of _c_o_m_p_o_s_i_t_e _i_m_a_g_e - _i_m_a_g_e, with underflow cropped to zero. The matte channel is ignored (set to 255, full coverage). AAAAdddddddd The result of _c_o_m_p_o_s_i_t_e _i_m_a_g_e + _i_m_a_g_e, with overflow wrapping around (_m_o_d 256). SSSSuuuubbbbttttrrrraaaacccctttt The result of _c_o_m_p_o_s_i_t_e _i_m_a_g_e - _i_m_a_g_e, with underflow wrapping around (_m_o_d 256). The aaaadddddddd and ssssuuuubbbbttttrrrraaaacccctttt operators can be used to perform reversible transformations. DDDDiiiiffffffffeeeerrrreeeennnncccceeee The result of abs(_c_o_m_p_o_s_i_t_e _i_m_a_g_e - _i_m_a_g_e). This is useful for comparing two very similar images. BBBBuuuummmmppppmmmmaaaapppp Page 3 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) The result _i_m_a_g_e shaded by _c_o_m_p_o_s_i_t_e _i_m_a_g_e. RRRReeeeppppllllaaaacccceeee The resulting image is _i_m_a_g_e replaced with _c_o_m_p_o_s_i_t_e _i_m_a_g_e. Here the matte information is ignored. RRRReeeeppppllllaaaacccceeeeRRRReeeedddd The resulting image is the red layer in _i_m_a_g_e replaced with the red layer in _c_o_m_p_o_s_i_t_e _i_m_a_g_e. The other layers are copied untouched. RRRReeeeppppllllaaaacccceeeeGGGGrrrreeeeeeeennnn The resulting image is the green layer in _i_m_a_g_e replaced with the green layer in _c_o_m_p_o_s_i_t_e _i_m_a_g_e. The other layers are copied untouched. RRRReeeeppppllllaaaacccceeeeBBBBlllluuuueeee The resulting image is the blue layer in _i_m_a_g_e replaced with the blue layer in _c_o_m_p_o_s_i_t_e _i_m_a_g_e. The other layers are copied untouched. RRRReeeeppppllllaaaacccceeeeMMMMaaaatttttttteeee The resulting image is the matte layer in _i_m_a_g_e replaced with the matte layer in _c_o_m_p_o_s_i_t_e _i_m_a_g_e. The other layers are copied untouched. The image compositor requires a matte, or alpha channel in the image for some operations. This extra channel usually defines a mask which represents a sort of a cookie-cutter for the image. This is the case when matte is 255 (full coverage) for pixels inside the shape, zero outside, and between zero and 255 on the boundary. For certain operations, if _i_m_a_g_e does not have a matte channel, it is initialized with 0 for any pixel matching in color to pixel location (0,0), otherwise 255 (to work properly bbbboooorrrrddddeeeerrrrwwwwiiiiddddtttthhhh must be 0). ----ccccoooommmmpppprrrreeeessssssss _t_y_p_e the type of image compression: _N_o_n_e, _J_P_E_G, _L_Z_W, _R_u_n_l_e_n_g_t_h_E_n_c_o_d_e_d, or _Z_i_p. Specify ++++ccccoooommmmpppprrrreeeessssssss to store the binary image in an uncompressed format. The default is the compression type of the specified image file. ----ddddeeeennnnssssiiiittttyyyy <_w_i_d_t_h>_x<_h_e_i_g_h_t> vertical and horizontal resolution in pixels of the image. This option specifies an image density when decoding a Postscript or Portable Document page. The default is 72 pixels per inch in the horizontal and vertical Page 4 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) direction. This option is used in concert with ----ppppaaaaggggeeee. ----ddddiiiissssppppllllaaaacccceeee <_h_o_r_i_z_o_n_t_a_l _s_c_a_l_e>_x<_v_e_r_t_i_c_a_l _s_c_a_l_e> shift image pixels as defined by a displacement map. With this option, _c_o_m_p_o_s_i_t_e _i_m_a_g_e is used as a displacement map. Black, within the displacement map, is a maximum positive displacement. White is a maximum negative displacement and middle gray is neutral. The displacement is scaled to determine the pixel shift. By default, the displacement applies in both the horizontal and vertical directions. However, if you specify _m_a_s_k, _c_o_m_p_o_s_i_t_e _i_m_a_g_e is the horizontal X displacement and _m_a_s_k the vertical Y displacement. ----ddddiiiissssppppllllaaaayyyy _h_o_s_t:_d_i_s_p_l_a_y[._s_c_r_e_e_n] specifies the X server to contact; see XXXX((((1111)))). ----ddddiiiissssppppoooosssseeee _m_e_t_h_o_d GIF disposal method. Here are the valid methods: 0 No disposal specified. 1 Do not dispose. 2 Restore to background color. 3 Restore to previous. ----ddddiiiitttthhhheeeerrrr apply Floyd/Steinberg error diffusion to the image. The basic strategy of dithering is to trade intensity resolution for spatial resolution by averaging the intensities of several neighboring pixels. Images which suffer from severe contouring when reducing colors can be improved with this option. The ----ccccoooolllloooorrrrssss or ----mmmmoooonnnnoooocccchhhhrrrroooommmmeeee option is required for this option to take effect. Use ++++ddddiiiitttthhhheeeerrrr to render Postscript without text or graphic aliasing. ----ffffoooonnnntttt _n_a_m_e This option specifies the font to be used for displaying normal text. If the font is a fully qualified X server font name, the font is obtained from an X server (e.g. -*- helvetica-medium-r-*-*-12-*-*-*-*-*-iso8859-*). To use a TrueType font, precede the TrueType filename with a @@@@ (e.g. @times.ttf). Otherwise, specify a Postscript Page 5 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) font (e.g. helvetica). _o_f_f_s_e_t>{!}{<}{>} ----ggggeeeeoooommmmeeeettttrrrryyyy <_w_i_d_t_h>{%}_x<_h_e_i_g_h_t>{%}{+-}<_x _o_f_f_s_e_t>{+-}<_y the width and height of the image. By default, the width and height are maximum values. That is, the image is expanded or contracted to fit the width and height value while maintaining the aspect ratio of the image. Append an exclamation point to the geometry to force the image size to exactly the size you specify. For example, if you specify 666644440000xxxx444488880000!!!! the image width is set to 640 pixels and height to 480. If only one factor is specified, both the width and height assume the value. To specify a percentage width or height instead, append %%%%. The image size is multiplied by the width and height percentages to obtain the final image dimensions. To increase the size of an image, use a value greater than 100 (e.g. 125%). To decrease an image's size, use a percentage less than 100. Use >>>> to change the dimensions of the image _o_n_l_y if its size exceeds the geometry specification. >>>> resizes the image _o_n_l_y if its dimensions is less than the geometry specification. For example, if you specify 666644440000xxxx444488880000>>>> and the image size is 512x512, the image size does not change. However, if the image is 1024x1024, it is resized to 640x480. By default the images are combined relative to the image gravity (see ----ggggrrrraaaavvvviiiittttyyyy). Use <_x _o_f_f_s_e_t> and <_y _o_f_f_s_e_t> to specify a particular location to combine the images. ----ggggrrrraaaavvvviiiittttyyyy _d_i_r_e_c_t_i_o_n direction image gravitates to within the composite. See XXXX((((1111)))) for details about the gravity specification. The image may not fill the composite completely (see ----ggggeeeeoooommmmeeeettttrrrryyyy). The direction you choose specifies where to position the image within the composite. For example _C_e_n_t_e_r gravity forces the image to be centered within the composite. A gravity of _F_o_r_g_e_t stretches the composite to the same size as the image. By default, the image gravity is _N_o_r_t_h_W_e_s_t. ----iiiinnnntttteeeerrrrllllaaaacccceeee _t_y_p_e the type of interlacing scheme: NNNNoooonnnneeee, LLLLiiiinnnneeee, PPPPllllaaaannnneeee, or PPPPaaaarrrrttttiiiittttiiiioooonnnn. The default is NNNNoooonnnneeee. Page 6 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) This option is used to specify the type of interlacing scheme for raw image formats such as RRRRGGGGBBBB or YYYYUUUUVVVV. NNNNoooo means do not interlace (RGBRGBRGBRGBRGBRGB...), LLLLiiiinnnneeee uses scanline interlacing (RRR...GGG...BBB...RRR...GGG...BBB...), and PPPPllllaaaannnneeee uses plane interlacing (RRRRRR...GGGGGG...BBBBBB...). PPPPaaaarrrrttttiiiittttiiiioooonnnn is like plane except the different planes are saved to individual files (e.g. image.R, image.G, and image.B). Use LLLLiiiinnnneeee, or PPPPllllaaaannnneeee to create an interlaced GIF or progressive JPEG image. ----llllaaaabbbbeeeellll _n_a_m_e assign a label to an image. Use this option to assign a specific label to the image. Optionally you can include the image filename, type, width, height, or scene number in the label by embedding special format characters. Embed %%%%ffff for filename, %%%%dddd for directory, %%%%eeee for filename extention, %%%%tttt for top of filename, %%%%mmmm for magick, %%%%wwww for width, %%%%hhhh for height, %%%%pppp for page number, %%%%ssss for scene number, %%%%bbbb for file size in kilobytes, or \\\\nnnn for newline. For example, -label "%m:%f %wx%h" produces an image label of MMMMIIIIFFFFFFFF::::bbbbiiiirrrrdddd....mmmmiiiiffffffff 555511112222xxxx444488880000 for an image titled bbbbiiiirrrrdddd....mmmmiiiiffffffff and whose width is 512 and height is 480. If the first character of _s_t_r_i_n_g is @@@@, the image label is read from a file titled by the remaining characters in the string. When converting to Postscript, use this option to specify a header string to print above the image. Specify the label font with ----ffffoooonnnntttt. ----mmmmaaaatttttttteeee store matte channel if the image has one otherwise create an opaque one. ----mmmmoooonnnnoooocccchhhhrrrroooommmmeeee transform the image to black and white. ----nnnneeeeggggaaaatttteeee apply color inversion to image. The red, green, and blue intensities of an image are negated. Use ++++nnnneeeeggggaaaatttteeee to only negate the grayscale Page 7 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) pixels of the image. ----ppppaaaaggggeeee <_w_i_d_t_h>{%}_x<_h_e_i_g_h_t>{%}{+-}<_x _o_f_f_s_e_t>{+- }<_y _o_f_f_s_e_t>{!}{<}{>} preferred size and location of an image canvas. Use this option to specify the dimensions of the Postscript page in dots per inch or a TEXT page in pixels. The choices for a Postscript page are: Letter 612x 792 Tabloid 792x1224 Ledger 1224x 792 Legal 612x1008 Statement 396x 612 Executive 540x 720 A3 842x1190 A4 595x 842 A5 420x 595 B4 729x1032 B5 516x 729 Folio 612x 936 Quarto 610x 780 10x14 720x1008 For convenience you can specify the page size by media (e.g. A4, Ledger, etc.). Otherwise, ----ppppaaaaggggeeee behaves much like ----ggggeeeeoooommmmeeeettttrrrryyyy (e.g. -page letter+43+43>). To position a GIF image, use -page {+-}<_x _o_f_f_s_e_t>{+-}<_y _o_f_f_s_e_t> (e.g. -page +100+200). For a Postscript page, the image is sized as in ----ggggeeeeoooommmmeeeettttrrrryyyy and positioned relative to the lower left hand corner of the page by {+-}<_x _o_f_f_s_e_t>{+-}<_y _o_f_f_s_e_t>. Use -page 612x792>, for example, to center the image within the page. If the image size exceeds the Postscript page, it is reduced to fit the page. The default page dimensions for a TEXT image is 612x792. This option is used in concert with ----ddddeeeennnnssssiiiittttyyyy. ----qqqquuuuaaaalllliiiittttyyyy _v_a_l_u_e JPEG/MIFF/PNG compression level. For the JPEG image format, quality is 0 (worst) to 100 (best). The default quality is 75. Quality for the MIFF and PNG image format sets the amount of image compression (quality / 10) and filter- Page 8 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) type (quality % 10). Compression quality values range from 0 (worst) to 100 (best). If filter-type is 4 or less, the specified filter-type is used for all scanlines: 0: none 1: sub 2: up 3: average 4: Paeth If filter-type is 5, adaptive filtering is used when quality is greater than 50 and the image does not have a color map, otherwise no filtering is used. If filter-type is 6 or more, adaptive filtering with _m_i_n_i_m_u_m-_s_u_m-_o_f-_a_b_s_o_l_u_t_e-_v_a_l_u_e_s is used. The default is quality is 75. Which means nearly the best compression with adaptive filtering. For further information, see the PNG specification (RFC 2083), <http://www.w3.org/pub/WWW/TR>. ----sssscccceeeennnneeee _v_a_l_u_e image scene number. ----ssssiiiizzzzeeee <_w_i_d_t_h>{%}_x<_h_e_i_g_h_t>{%}{+_o_f_f_s_e_t}{!} width and height of the image. Use this option to specify the width and height of raw images whose dimensions are unknown such as GGGGRRRRAAAAYYYY, RRRRGGGGBBBB, or CCCCMMMMYYYYKKKK. In addition to width and height, use ----ssssiiiizzzzeeee to skip any header information in the image or tell the number of colors in a MMMMAAAAPPPP image file, (e.g. -size 640x512+256). ----sssstttteeeerrrreeeeoooo combine two image to create a stereo anaglyph. The left side of the stereo pair is saved as the red channel of the output image. The right sife is saved as the green channel. Red-blue stereo glasses are required to properly view the stereo image. ----ttttiiiilllleeee repeat composite operation across image. ----ttttrrrreeeeeeeeddddeeeepppptttthhhh _v_a_l_u_e Normally, this integer value is zero or one. A zero or one tells ccccoooommmmbbbbiiiinnnneeee to choose a optimal tree depth for the color reduction algorithm. Page 9 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) An optimal depth generally allows the best representation of the source image with the fastest computational speed and the least amount of memory. However, the default depth is inappropriate for some images. To assure the best representation, try values between 2 and 8 for this parameter. Refer to qqqquuuuaaaannnnttttiiiizzzzeeee((((9999)))) for more details. The ----ccccoooolllloooorrrrssss option is required for this option to take effect. ----vvvveeeerrrrbbbboooosssseeee print detailed information about the image. This information is printed: image scene number; image name; combined image name; image size; the image class (_D_i_r_e_c_t_C_l_a_s_s or _P_s_e_u_d_o_C_l_a_s_s); the total number of unique colors; and the number of seconds to read and combine the image. Options are processed in command line order. Any option you specify on the command line remains in effect until it is explicitly changed by specifying the option again with a different effect. By default, the image format is determined by its magic number. To specify a particular image format, precede the filename with an image format name and a colon (i.e. ps:image) or specify the image type as the filename suffix (i.e. image.ps). See ccccoooonnnnvvvveeeerrrrtttt((((1111)))) for a list of valid image formats. When you specify XXXX as your image type, the filename has special meaning. It specifies an X window by id, name, or rrrrooooooootttt. If no filename is specified, the window is selected by clicking the mouse in the desired window. Specify _i_m_a_g_e as - for standard input, _c_o_m_b_i_n_e_d as - for standard output. If _i_m_a_g_e has the extension ....ZZZZ or ....ggggzzzz, the file is uncompressed with uuuunnnnccccoooommmmpppprrrreeeessssssss or gggguuuunnnnzzzziiiipppp respectively. If _c_o_m_b_i_n_e_d has the extension ....ZZZZ or ....ggggzzzz, the file size is compressed using with ccccoooommmmpppprrrreeeessssssss or ggggzzzziiiipppp respectively. Finally, precede the image file name with | to pipe to or from a system command. Use an optional index enclosed in brackets after a file name to specify a desired subimage of a multi-resolution image format like Photo CD (e.g. img0001.pcd[4]) or a range for MPEG images (e.g. video.mpg[50-75]). A subimage specification can be disjoint (e.g. image.tiff[2,7,4]). For raw images, specify a subimage with a geometry (e.g. -size 640x512 image.rgb[320x256+50+50]). Page 10 (printed 12/17/98) ccccoooommmmbbbbiiiinnnneeee((((1111)))) IIIImmmmaaaaggggeeeeMMMMaaaaggggiiiicccckkkk ((((11110000 JJJJaaaannnnuuuuaaaarrrryyyy 1111999999993333)))) ccccoooommmmbbbbiiiinnnneeee((((1111)))) The optional mmmmaaaasssskkkk can be used to provide matte information for ccccoooommmmppppoooossssiiiitttteeee when it has none or if you want a different mask. A mask image is typically grayscale and the same size as ccccoooommmmppppoooossssiiiitttteeee. If the image is not grayscale, it is converted to grayscale and the resulting intensities are used as matte information. If _c_o_m_b_i_n_e_d already exists, you will be prompted as to whether it should be overwritten. EEEENNNNVVVVIIIIRRRROOOONNNNMMMMEEEENNNNTTTT ddddiiiissssppppllllaaaayyyy To get the default host, display number, and screen. SSSSEEEEEEEE AAAALLLLSSSSOOOO ddddiiiissssppppllllaaaayyyy((((1111)))),,,, aaaannnniiiimmmmaaaatttteeee((((1111)))),,,, iiiimmmmppppoooorrrrtttt((((1111)))),,,, mmmmoooonnnnttttaaaaggggeeee((((1111)))),,,, mmmmooooggggrrrriiiiffffyyyy((((1111)))),,,, ccccoooonnnnvvvveeeerrrrtttt((((1111)))),,,, xxxxttttpppp((((1111)))) CCCCOOOOPPPPYYYYRRRRIIIIGGGGHHHHTTTT Copyright 1998 E. I. du Pont de Nemours and Company Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files ("ImageMagick"), to deal in ImageMagick without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of ImageMagick, and to permit persons to whom the ImageMagick is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of ImageMagick. The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall E. I. du Pont de Nemours and Company be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with ImageMagick or the use or other dealings in ImageMagick. Except as contained in this notice, the name of the E. I. du Pont de Nemours and Company shall not be used in advertising or otherwise to promote the sale, use or other dealings in ImageMagick without prior written authorization from the E. I. du Pont de Nemours and Company. AAAAUUUUTTTTHHHHOOOORRRRSSSS John Cristy, E.I. du Pont De Nemours and Company Incorporated Page 11 (printed 12/17/98)