#BATCH RESIZE PHOTOS MAC MAC OS X#
Lanczos2 is almost identical to Catrom, and it is also similar to the bicubic option in Photoshop. Batch Resize Images in Mac OS X From Preview, select the images that you want to batch resize from the drawer. I usually use Lanczos2 (2-lobe Lanczos), which makes images less sharp than Lanczos ( Lanczos3 or 3-lobe Lanczos). Triangle is similar to the resizing methods used by Automator and sips. Also, it is possible to convert image file types in batches. The default filter for downscaling images is Triangle, which often makes images look too blurry without additional sharpening in my opinion. 'Batch Resize Pictures' allows you to easily and quickly resize large numbers of images to zoom in or out. # use a white instead of a black backgroundĬonvert transparent-bg.png -flatten white-bg.jpg # make images smaller or larger and crop them so that they are exactly 200x200 pixels Mogrify -filter lanczos2 -thumbnail 'x500>' -format jpg -quality 93 -path ~/Desktop/ *.png # save thumbnails to ~/Desktop and make images wider than 500 pixels smaller Mogrify -filter lanczos2 -resize '1280x1280>' *.png More examples: # modify images in place and make images larger than 1280x1280 pixels smaller
#BATCH RESIZE PHOTOS MAC INSTALL#
You can install ImageMagick with brew install imagemagick or sudo port install imagemagick and use something like this:įor f in *.png do convert $f -filter lanczos2 -resize 600x -extent 600x200 -quality 75 $jpg done
Is that my best option on a Mac? Can I accomplish this more efficiently through another app like Quicksilver? I also can't assign a keyboard shortcut to the whole process. (It can scale specifically to width before cropping height.) It can change to JPG, but it can't specify image quality. I can do it one at a time with some keyboard shortcuts in Photoshop or Pixelmator.Īutomator (using Preview) can scale to 600 pixels on the longest dimension, but it doesn't let me specify width. I can do all that manually, to a batch of files, through Preview. All of the above, plus step a(1): Crop images to 200 pixel height.Scale all the pictures to 600 pixels wide.(image file extension) For example, to resize a collection of jpg pictures to each have a max height of 620, located in the desktop folder ResizeMe: sips -Z 620 /Desktop/ResizeMe/. Hit a button or two (menu item or keyboard shortcut) to do the following: Launch Terminal from the /Application/Utilities/ folder and use the following syntax: sips -Z (max height in pixels) /path/to/images/.Select a group of image files in finder.I've been batch-resizing images through Preview (OS X) through the menu bar, but I want a simpler workflow, since I do this a dozen times a day.
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