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. Windows: Powershell: for Facebook Photos for example: Right click windows Start, select Terminal C: cd to directory that you require to do conversion from: ie: cd Users/OneDrive/Pictures C: mkdir FBName creates sub-directory makedir. 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. Now, how to do this through the terminal. In this post we'll see how we can use the Imagick PHP extension to proportionally resize and crop images in real-time: in a nutshell, we'll learn how to create real-time thumbnails from a given source image the main advantage about such technique is that it can be used in Windows and Linux environments, since the Imagick extension and the. Then all shrinked images would have at least 300 width and 200 height, and they will. Something like: convert -resize -minwidth 300 -minheight 200 -keep-ratio src. I want to shrink all of them while keeping a minimum height and width, while keeping the same ratio. Img = img.resize((basewidth,hsize), Image.ANTIALIAS) I have a bunch of images in a folder with different dimensions and ratio. Hsize = int((float(img.size)*float(wpercent))) Print "cannot create thumbnail for '%s'" % infileĪnd another example where you only have to specify the width (as the width variable): Outfile = os.path.splitext(infile) + ".thumbnail" Those examples use just the standard library. 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.
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