![]() ![]() This is more of a Python answer, but it is done all through the terminal technically. The second script makes it 300 pixels wide and calculates the proportional height. The first one shrinks the image to 128x128 pixels. You must be in the same directory as the picture files for both of these scripts. To use Script #2: python resizescript.py yourfilenamehere.jpg To use Script #1: python resizescript.py yourfilenamehere.jpg Ctrl+x to exit (say yes to save changes). Paste one of those blocks of code into the text editor. The resulting image will be much smaller, 20 of the former size, not 20 smaller than before, not much smaller. Open a terminal and run this command: convert -resize 20 source.png dest.jpg. > A resized picture but with bad quality. First install ImageMagick via: sudo apt-get install imagemagick. What I need is a command-line, which will resize canvas to a given size and fit original image inside it, preserving aspect ratio. I've tried the following commands: convert -resize 170x80 -resample 100x100 image1.jpg image2.jpg. So lets say my original image is 300x200 in size. The issue is that I don't want to worsen the image quality. Now, how to do this through the terminal. Using ImageMagick, I'm trying to resize a JPEG's dimensions and reduce the file size. Img = img.resize((basewidth,hsize), Image.ANTIALIAS) ![]() So if I specify new canvas size 900x900 the original image should become 900圆00 and be center-aligned inside 900x900 canvas. Hsize = int((float(img.size)*float(wpercent))) So let's say my original image is 300x200 in size. I know that resizing the pictures dimension should get me below n at a certain point, but the process of resizing, saving, checking file size is cumbersome. Print "cannot create thumbnail for '%s'" % infileĪnd another example where you only have to specify the width (as the width variable): Every so often, I try to upload a picture to a website and encounter a message: Upload failed: the file size cant exceed n MB. Outfile = os.path.splitext(infile) + ".thumbnail" Those examples use just the standard library. id prefer to not use resize and trying to get them to a 100 dpi setting. Since Ubuntu ships with Python, you can also use a Python script to achieve this with a little more control over what happens - see this stackoverflow question for example scripts. Trying to use imagemagick to have all images set to a preset size like a letterhead (8 1/2x11) for example. ![]()
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