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From: Soon <met...@ya...> - 2007-06-05 02:22:53
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Hi... Can anyone please enlighten me on how can I use gnuplot to display images of BMP/PNG format? I am using gnuplot version 4.2. Thanks ya =) -- View this message in context: http://www.nabble.com/Display-Image-using-gnuplot...-tf3869138.html#a10962059 Sent from the Gnuplot - User mailing list archive at Nabble.com. |
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From: Thomas S. <t.s...@fz...> - 2007-06-05 15:40:11
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convert the images (with e.g. some 'netpbm' package programs) into something readable by gnuplot (see 'show datafile binary filetypes') and then plot it with plot 'filename' binary ... with rgbimage Soon wrote: > > Hi... Can anyone please enlighten me on how can I use gnuplot to display > images of BMP/PNG format? I am using gnuplot version 4.2. Thanks ya =) > -- View this message in context: http://www.nabble.com/Display-Image-using-gnuplot...-tf3869138.html#a10972123 Sent from the Gnuplot - User mailing list archive at Nabble.com. |
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From: Soon <met...@ya...> - 2007-06-06 07:18:45
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I have downloaded the netPbm v10.27, so how do I call the netpbm programs from gnuplot? Thanks again =) Thomas Sefzick wrote: > > convert the images (with e.g. some 'netpbm' package programs) into > something readable by gnuplot (see 'show datafile binary filetypes') and > then plot it with > plot 'filename' binary ... with rgbimage > > > Soon wrote: >> >> Hi... Can anyone please enlighten me on how can I use gnuplot to display >> images of BMP/PNG format? I am using gnuplot version 4.2. Thanks ya =) >> > > -- View this message in context: http://www.nabble.com/Display-Image-using-gnuplot...-tf3869138.html#a10983614 Sent from the Gnuplot - User mailing list archive at Nabble.com. |
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From: Thomas S. <t.s...@fz...> - 2007-06-06 11:51:18
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you could also use ImageMagick's command line tool 'convert' to produce an avs-file: sh> convert ts.bmp ts.avs and then plot this file: gnuplot> plot "ts.avs" binary filetype=avs with rgbimage gnuplot> plot "ts.avs" binary filetype=auto with rgbimage Soon wrote: > > I have downloaded the netPbm v10.27, so how do I call the netpbm programs > from gnuplot? Thanks again =) > > > Thomas Sefzick wrote: >> >> convert the images (with e.g. some 'netpbm' package programs) into >> something readable by gnuplot (see 'show datafile binary filetypes') and >> then plot it with >> plot 'filename' binary ... with rgbimage >> >> >> Soon wrote: >>> >>> Hi... Can anyone please enlighten me on how can I use gnuplot to display >>> images of BMP/PNG format? I am using gnuplot version 4.2. Thanks ya =) >>> >> >> > > -- View this message in context: http://www.nabble.com/Display-Image-using-gnuplot...-tf3869138.html#a10987066 Sent from the Gnuplot - User mailing list archive at Nabble.com. |
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From: Thomas S. <t.s...@fz...> - 2007-06-06 10:52:56
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for a bmp-file (named 'ts.bmp') with size 320x240 the plot-command would be: plot "< bmptopnm ts.bmp | tail -n 1" binary array=320x240 format="%uint8" flipy with rgbimage (i'm using gnuplot 4.3) Soon wrote: > > I have downloaded the netPbm v10.27, so how do I call the netpbm programs > from gnuplot? Thanks again =) > > > Thomas Sefzick wrote: >> >> convert the images (with e.g. some 'netpbm' package programs) into >> something readable by gnuplot (see 'show datafile binary filetypes') and >> then plot it with >> plot 'filename' binary ... with rgbimage >> >> >> Soon wrote: >>> >>> Hi... Can anyone please enlighten me on how can I use gnuplot to display >>> images of BMP/PNG format? I am using gnuplot version 4.2. Thanks ya =) >>> >> >> > > -- View this message in context: http://www.nabble.com/Display-Image-using-gnuplot...-tf3869138.html#a10986279 Sent from the Gnuplot - User mailing list archive at Nabble.com. |
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From: Soon <met...@ya...> - 2007-06-07 03:29:10
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Thanks so much! I'm able to display the image now. But I still have 1 more question: How to display a 2D image in a 3D space? To display 2D image, I use the folowing command: plot 'Image.bin' binary array=308x785:785x308 format='%uchar' dx=2:1 dy=1:2 origin=(0,0):(785,785) w rgbimage But when I modify the command in order to display it in 3D: splot 'Image.bin' binary array=308x785x100:100x785x308 format='%uchar' dx=2:1 dy=1:2 dz=2:1 origin=(0,0,0):(785,785,785) w rgbimage It showed error: "Currently do not support sampled array dimensions greater than 2" What does it means? Thanks ya =) Thomas Sefzick wrote: > > for a bmp-file (named 'ts.bmp') with size 320x240 the plot-command would > be: > > plot "< bmptopnm ts.bmp | tail -n 1" binary array=320x240 format="%uint8" > flipy with rgbimage > > (i'm using gnuplot 4.3) > > > Soon wrote: >> >> I have downloaded the netPbm v10.27, so how do I call the netpbm programs >> from gnuplot? Thanks again =) >> >> >> Thomas Sefzick wrote: >>> >>> convert the images (with e.g. some 'netpbm' package programs) into >>> something readable by gnuplot (see 'show datafile binary filetypes') and >>> then plot it with >>> plot 'filename' binary ... with rgbimage >>> >>> >>> Soon wrote: >>>> >>>> Hi... Can anyone please enlighten me on how can I use gnuplot to >>>> display images of BMP/PNG format? I am using gnuplot version 4.2. >>>> Thanks ya =) >>>> >>> >>> >> >> > > -- View this message in context: http://www.nabble.com/Display-Image-using-gnuplot...-tf3869138.html#a11001442 Sent from the Gnuplot - User mailing list archive at Nabble.com. |
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From: Thomas S. <t.s...@fz...> - 2007-06-07 19:31:51
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as you can see in the demo gallery http://gnuplot.sourceforge.net/demo/image.html in 3d only 'image' works, not 'rgbimage'. also see the end of the section '43.59.8.18 Rgbimage' in the gnuplot manual. that means, greyscale images are possible, but not color images, unless you are able to have all the colors you need within one palette (see 'set palette rgbformulae') and convert your image from rgb into an image where each pixels only contains one value which addresses the corresponding color in the palette (sounds complicated...). Soon wrote: > > Thanks so much! I'm able to display the image now. But I still have 1 more > question: How to display a 2D image in a 3D space? > > To display 2D image, I use the folowing command: > plot 'Image.bin' binary array=308x785:785x308 format='%uchar' dx=2:1 > dy=1:2 origin=(0,0):(785,785) w rgbimage > > But when I modify the command in order to display it in 3D: > splot 'Image.bin' binary array=308x785x100:100x785x308 format='%uchar' > dx=2:1 dy=1:2 dz=2:1 origin=(0,0,0):(785,785,785) w rgbimage > > It showed error: "Currently do not support sampled array dimensions > greater than 2" > > What does it means? Thanks ya =) > > > Thomas Sefzick wrote: >> >> for a bmp-file (named 'ts.bmp') with size 320x240 the plot-command would >> be: >> >> plot "< bmptopnm ts.bmp | tail -n 1" binary array=320x240 format="%uint8" >> flipy with rgbimage >> >> (i'm using gnuplot 4.3) >> >> >> Soon wrote: >>> >>> I have downloaded the netPbm v10.27, so how do I call the netpbm >>> programs from gnuplot? Thanks again =) >>> >>> >>> Thomas Sefzick wrote: >>>> >>>> convert the images (with e.g. some 'netpbm' package programs) into >>>> something readable by gnuplot (see 'show datafile binary filetypes') >>>> and then plot it with >>>> plot 'filename' binary ... with rgbimage >>>> >>>> >>>> Soon wrote: >>>>> >>>>> Hi... Can anyone please enlighten me on how can I use gnuplot to >>>>> display images of BMP/PNG format? I am using gnuplot version 4.2. >>>>> Thanks ya =) >>>>> >>>> >>>> >>> >>> >> >> > > -- View this message in context: http://www.nabble.com/Display-Image-using-gnuplot...-tf3869138.html#a11014735 Sent from the Gnuplot - User mailing list archive at Nabble.com. |
