2019年1月2日 · mimeopen -d image.png sample output: Please choose a default application for files of type image/png 1) ImageMagick (color depth=q16) (display-im6.q16) 2) GNU Image Manipulation Program (gimp) 3) Feh (feh) Select your default application , next time you will be able to use: mimeopen image.png or: xdg-open image.png

2015年9月6日 · Actually, there is a way to show a PNG file in a terminal in text-mode, using picture-tube: You can look at the project on GitHub. The image is of course an approximation of the actual image, given the fact that the smallest pixel is a character - try to have a look at the result in a text editor, you will see a huge number of color codes.

pnmcat -lr <(pngtopnm 1.png) <(pngtopnm 2.png) | pnmtopng > all.png EDIT: As user Hashbrown pointed out in a comment, this might have trouble with different sizes and/or transparency in the PNGs. To circumvent that he came up with this solution (just copying it here because the Q is closed and new answers cannot be added):

Suppose you have any image (PNG or JPG). This image has a white background and I need to make this background transparent. I have tried with these examples: convert original.png -background none transparent.png; convert original.png -background white -flatten -alpha off transparent.png; but with no desirable results. How can I make it?

For a sequence foobar004.png, foobar005.png, foobar006.png... open a command line and cd to the directory with everything in it then type./creategif foobar and it will create a file foobar.gif from the png's.

convert 1.png 2.png -compress jpeg -quality 50 Result.pdf Use a value between 0 and 100 for the quality option. Alternatively, you can reach a lower file size (and quality) by resampling the images to a certain resolution. convert *.png 2.png -resample 300 Result.pdf The value for resample refers to the number of pixels per inches. ImageMagick ...

2009年12月8日 · If you're on some Linux system, imagemagick is perfect. I.e. convert somefile.png somefile.svg This works with heaps of different formats. For other media such as videos and audio use (ffmpeg) I know you clearly stated png to svg, however; It's still media related. ffmpeg -i somefile.mp3 somefile.ogg

2019年3月20日 · Tested on Linux Ubuntu 20.04. This question is the top hit for the Google search of "linux convert .webp image to png". Therefore, for anyone stumbling here and just wanting that simple answer, here it is: # 1. Install the `webp` tool sudo apt update sudo apt install webp # 2. Use it: convert in.webp to out.png dwebp in.webp -o out.png Done!

2014年1月7日 · find . -name "*.jpg" -exec mogrify -format png {} \; You can use the find command to get all the jpg files in all the subfolders and pass your command as an argument to find Share

However, most programs, especially on the linux platform use the same library to decode the image-formats: For jpeg it's libjpeg, for png it's libpng. The chances that the libs are already installed is very high.