So, that's now 13 images per second, rather than 2.7 per second. It is pretty simple to use and I have always had excellent results with it.įor example, here I sequentially process 32 TIFF images created as above: time for i in. YMMV of course.ĭepending on the result of your test on disk speed, if your disk is not the limiting factor, consider using GNU Parallel to process more than one image at a time if you have a quad core CPU. Input.tif TIFF 3288x1152 3288x1152+0+0 8-bit sRGB 11.37MB 0.000u 0:00.000Ĭonvert to JPEG with ImageMagick time convert input.tif output.jpgĬonvert to JPEG with VIPS time vips copy input.tif output.jpg I benchmarked it like this: # Create dummy input image with ImageMagickĬonvert -size 3288x1152! xc:gray +noise gaussian -depth 8 input.tif Try experimenting with using VIPS from the command line to convert your images. I would do a little experiment with using a RAMdisk to see if that might help, or an SSD if you have one. If your input images are 15MB and, for argument's sake, your output images are 1MB, you are already using 80MB/s of disk bandwidth to process 5 images a second - which is already around 50% of what a sensible disk might sustain. configure CC=c99 CFLAGS=-O2 -without-magick -without-OpenEXR -without-openslide -without-matio -without-cfitsio -without-libwebp -without-pangoft2 -without-zip -without-png -without-python Well done Mark!Ĭompiled from source, vips-8.0 gets practically the same performance than 7.38: real 0m0.100sĬonfigure command. I will try to compile VIPS from source and see if I can beat that time. I also tried with the 7.42 (from ppa:dhor/myway) but it seems slighlty slower: real 0m0.134s Using the 7.38 version that is found in Ubuntu Trusty repositories: time vips copy input.tiff output.jpg Thanks to Mark's post, I give it a try to VIPS. I successfully compiled GraphicsMagick with Q8, but after all, it seems about 30% slower than ImageMagick (0.3 secs).Īfter compiling ImageMagick with Q8, there was a gain of about 25% (0.15 secs).
Tiff to jpg update#
UPDATE width GraphicsMagick & ImageMagick Q8īase comparison (see comment to Mark): 0.2 secs with ImageMagick Q16 We list a few examples of the magick command here to.
Tiff to jpg how to#
See Command Line Processing for advice on how to structure your magick command or see below for example usages of the command. I haven't tested either of those yet, but I was wondering if there are any other alternatives that could be faster than using ImageMagick Q8? Use the magick program to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more. I'm in the process of compiling ImageMagick Q8 as I read that it may improve performance (specially because I'm only working with 8bit images).ĬImg also looks like a good option and GraphicsMagick claims to be faster than ImageMagic.
I need to convert many TIFF images to JPEG per second.
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