![]() I run some test varying the two involved parameters: the filter and its support. The filter used for downscaling can have a dramatic effect on the resulting image quality and file size. The poor man antialiasing of images generated for example at 75 dpi is to create a double resolution image Top view (goes on the top right) and side view (goes on the bottom right). To experiment here are the three images used to test the script: front view (goes on the left), The script adds also a small annotation to the three panels. Montage -tile 2x1 -mode Concatenate x-front.png x-right.png final.pngĪll those operations are performed by the provided three-views.sh ![]() Montage -tile 1x2 -mode Concatenate x-top.png x-side.png x-right.png # Then combine them into the final.png image See the final result to understandĬonvert -scale 1020x1020 -border 2x2 front.png x-front.pngĬonvert -scale 508x508 -border 2x2 side.png x-side.pngĬonvert -scale 508x508 -border 2x2 top.png x-top.png INDEX.gif to the same directory of the images and edit INDEX.html changing theĪll those operations are performed by the provided create-index.sh shell script.Ĭreate a composite chart with three orthogonal views. Once generated you will find in the parent directory the two files INDEX.html andĭirectory the file INDEX_map.shtml that can be deleted. Montage -tile 1x2 -mode Concatenate image.png chart.png result.pngĬreate an index page for all the images contained in one directory: Montage -tile 2x2 -geometry 512x512 img.png tot.pngĪdd a chart (size 512x80) below an image (512x512) The geometry specify the size of the individual images in the If you leave out the '!' the resulting image will be 80x80Ĭonvert -geometry 512x80! XC:red filler.png The list of available fonts can be obtained with convert -list typeĪdd a logo to the image at position x=50 and y=10 without changing its size (0,0)Ĭonvert img-from -draw "image Over 50,10 0,0 logo.tif" img-toĬreate a not square solid color image (e.g. Less flexible than the preceding method.Ĭonvert img-from -annotate 0x0+50+10 '-font Arial -pointsize 24 ciao!' img-to This is better done using an interactive tool for a single image, butĬonvert is very useful for a set of images to add, for example, copyright information.Ĭonvert img-from -draw "text 50,10 '© Mario Valle 2007'" img-toĪnnotate the image. Seems this tool is the only one that preserves the color space duringĬonvert img.jpg PNM:- | pnmtotiffcmyk -lzw > img.tifĪnnotate the image with a text. First convert it into a CMYK TIFF file as before, then convert the resulting image to EPS using Create an EPS CMYK image for use in a LaTeX paper.Pnmtotiffcmyk -lzw img.pnm > img.tif convert img.jpg PNM:- | pnmtotiffcmyk -lzw > img.tif The second method produces nicer images, but bigger than the first one.Ĭonvert +dither img-from -colors 64 img-to convert img-from -posterize 6 img-toĬreate a CMYK TIFF file for printing ( pnmtotiffcmyk is one of the NetPBM tools) Reduce the number of colors in the image (for example to reduce the size for the web). Use GIMP Desaturate function, setting "Choose shade of gray based on" to "Luminosity". Note that to upscale an image (for example a dialog screen-capture for a paper) it is better to use theĬreate a black and white image for very contrasted images, like ball-and-stick chemical structures. 170 pixels)Ĭreate a thumbnail image with a given height (e.g. Scale to a percentage of the original size to create a thumbnailĬreate a thumbnail image with a given width (e.g. Scale to a percentage of the original size ![]() ImageMagick techniquesĬonvert all the images created by AVS/Express image_capture module to PNGĬonvert an image created by AVS/Express image_capture module to PNG removingĪll strange settings that could impact later movie production using mencoder convert AVS:Img00001.x +matte +page -depth 8 -type TrueColor Img00001.pngįlip an image produced using wrong setting of the flip switch in AVS/Express MinGW and run them under sh from a command window. Otherwise when you launch convert, the windows convert filesystem command will be called.įor scripts that should work on windows and Linux I suggest installing Cygwin or On Windows be careful with the definition of the PATH variable: ImageMagick install directory should come first, ImageMagick is available by default on Linux and can be installed and used on Windows. They have been tried and found useful for some needs. Here I collect some usefulĬommand lines I used for visualization images post processing.Ī more general collection of ImageMagick useful tricks can be found on the excellentĪt the end a quick coverage of other image manipulation tools. Mario Valle Web > Post processing & visual communication Image toolsĪfter producing beautiful images, sometimes some form of image postprocessing is needed.
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