I have the following GIF image file:
I want to extract its frames (using PGM output format) using this imagemagick command:
convert brocoli.gif out%05d.pgm
But each frame has a different size.
How can I extract its frames while preserving the original gif file size?
Use the -coalesce option:
convert -coalesce brocoli.gif out%05d.pgm
You can use graphicsmagick:
gm convert Test.gif +adjoin Test_image%3d.png
or
gm convert Test.gif -coalesce +adjoin Test_image%3d.png.
Related
I am converting a pdf to .tiff file using ImageMagick and calling it from python using subprocess,run() but, I want the output file size to be limited to a maximum value say 40MB. -define extent max_value is not working for tiff like it works for jpeg images.
This is my code:
subprocess.run('magick convert -density 150 example.pdf -trim -thumbnail 500 result%04d.tif')
I want to crop a singlepage tif file to 2316x2720px:
convert 00000001.tif -crop 2316x2720 -repage 00000001_cropped.tif
When I use this command the result is a multipage tif file with 4 frames.
First frame with 2316x2720px and 3 Frames with the rest.
How I only get the first frame in the tif file?
Without seeing your TIF, I suspect you want this:
convert 00000001.tif -crop 2316x2720+0+0 +repage 00000001_cropped.tif
I want to save .gif conversions of other images with a specified colormap. The "-remap cmap.gif" option in Image Magick
example: convert -remap cmap.gif input.png output.gif
DOES process input.png using the specified colors from cmap.gif, but it changes the order in the output colormap. Is there a way to force Image Magick to used EXACTLY the same colormap?
I am attempting to add new images to an ancient display program that accepts .gif file input but uses a fixed colormap with no ability to alter the colormap for individual images.
Does it help to add the +dither parameter?
convert input.png -remap cmap.gif +dither output.gif
I have a YUV420 image of size 1280x720. I am trying to resize it to 720x576 using convert (Imagemagick) using below commandline options. But the generated output file doesnot seem to be a proper resized YUV420 image(I want the resized output also to be in YUV420 format):
convert -size 1280x720 -depth 8 -sampling-factor 2x2 test_1280x720_yuv420.yuv -filter lanczos -resize 720x576 -depth 8 -sampling-factor 2x2 720x576_yuv420.yuv //Here the output file size is not what it should be of a 720x576 YUV420 file which is 720x576x1.5 bytes.
Qiestion: What is the format of this output file then?
Also tried -sample option as, but same result. Incorrect sized output file. I even tried to display the generated resized file, but it sure is not a YUV420 file, as could not view it correctly at all.
convert -size 1280x720 -depth 8 -sampling-factor 2x2 test_1280x720_yuv420.yuv -sample 720x576 -depth 8 -sampling-factor 2x2 720x576_yuv420.yuv
Question: Would convert be able to do what I am trying to get done? IF yes, what are the options?
Question: Any other tool(freeware,shareware) which could help me resize YUV files(different formats YUV420, YUV444) to YUV format output files?
Try to ignore aspect ration!
Ignore Aspect Ratio ('!' flag)
If you want you can force "-resize" to ignore the aspect ratio and distort the image so it always generates an image exactly the size specified. This is done by adding the character '!' to the size. Unfortunately this character is also sometimes used for special purposes by various UNIX command line shells. So you may have to escape the character somehow to preserve it.
Example:
convert image.gif -resize 64x64\! resized_image.gif //Resized Image with ignore ratio option
Our print team saves raster images as .eps files. We need to convert about 11000 .eps to .jpg. We are using ImageMagick (with Ghostprint) on Linux. The conversion occurs but the resulting .jpg is not the same size as the source .eps - It's about 1/2 the size. Probably a problem converting a vector to a raster. Any way to solve this?
Your using the default resolution (72dpi). use the -density option to specify a dpi to convert.
convert -density 300 /path/to/file.eps -flatten /path/to/file/.jpg;