display server get image or font from this X server direction type render text right-to-left or left-to-right density geometry horizontal and vertical density of the image delay value display the next image after pausing compress type type of pixel compression when writing the image compose operator set image composite operator comment string annotate image with comment
colorspace type alternate image colorspace colors value preferred number of colors in the image clip-mask filename associate a clip mask with the image channel type apply option to select image channels caption string assign a caption to an image blue-primary point chromaticity blue primary point bias value add bias when convolving an image attenuate value lessen (or intensify) when adding noise to an image alpha option activate, deactivate, reset, or set the alpha channel adjoin join images into a single multi-image file I use this command:Ĭopyright: Copyright (C) 1999-2014 ImageMagick Studio LLCĭelegates: bzlib cairo freetype jbig jng jp2 jpeg lcms lqr pangocairo png ps rsvg tiff webp xml zlib
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One might download it individually, but ImageMagick brings it along. It stands at the core of many applications.
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The ffmpeg software library emarges in various places on the internet. Or using my frontend (further down).ġ) extract still frames from an arbitrary video fileĢ) create an animated gif – animgif – from arbitrary still framesġ) Extracting frames from a video: ffmpeg. Both have a command line interface – no gui – to which Linux users might be much more used to.
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So after a while I decided to use the free ImageMagick + ffmpeg software collection. Science and hobby sciences are ment to be shared. Because the treasures of astronomy are worthless if they are not shared. Or the transit of Venus, recorded by myself. Or suppose I want to show you a sunset with sunspots. Should I upload a youtube clip? No: I wanted a GIF. Why animgif? Suppose I want to show you how bad the seeing was when I imaged Saturn. Nice tracking softwares for ad servers or you might find that your computer is actually mining bitcoins in the background. Worst case scenario: you get some bundleware, crapware or spyware. Best case scenario: you get to look at ads and ads and ads, you get a burnt in logo on your gif etc. Be it a converter from video or still frames. Same black hat sh*t when we try to find an animgif creator – yes, a free one. This pisses me off, and this is the reason I wrote this article and developed the free software. Today? Trojans, spyware and spamdexing wherever you look. Free software was free, developed by developers, and the notion of bundleware, crapware, bloatware were like unknown. Search engines were as they were, but the results were valid. I am nostalgic about those times when there was no, or at least much less black hat content on the internet. MC 102/1300, webcam, stack of 268 frames, Registax
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