Batch resize images mac os x how to#
Batch resize images mac os x code#
Batch resize images mac os x plus#

Step 6: Automator will prompt you to add an add a Copy Finder Items action to preserve original files in a separate folder. Step 5: Under Actions select Photos, and drag Scale Images to the build area. Step 4: Under Actions (on the left) select Files and Folders, and drag Get Specified Finder Items to the build area (right side). Step 3: Choose image files in the Services receives selected drop down box. Step 2: Select Service for the document type. Here’s how you can create your own handy image resizing service using Automator. It’s easy to resize images in an app like Preview or Pixelmator, but using a service works better for me since it can batch resize multiple images in seconds, and it’s directly accessible from the Finder. so that the resize is done before the crop.Every day I use a handy service created with Automator to resize images exported from 4K footage to a smaller size. Now on the advanced screen again tick the box next to 'custom processing order' and make sure that the 'resize' is first on the list - i.e. The canvas colour doesn't matter as it won't actually add an image border Choose the 'center' option for the anchor Select method 2 and width and height as 600. Instead of using 'crop' use the 'canvas size' setting - make sure you tick the optionĬlick on the 'settings' button next to the canvas size option. For your 600圆00 images you may not need a sharpen value - so you can untick that option. My requirement was for images of 150x150 size and I found they needed a sharpen value of about 20 to match the quality of image I was getting from photoshop. If you are dramatically reducing the size of your original images then you may want to tick the 'sharpen' box and add a value. Make sure you tick 'preserve aspect ratio' and 'use resample function'. Set up the resize with shortest side 600. Tick the box that says 'Use advanced option' then click the 'advanced' button Choose 'PNG' as your output format.Ĭlick on the 'options' button next to the output format and choose the compression that you want and click OK Irfanview can do this but takes a bit of setting up. When you start working on the programmatic level, then the sky is the limit! It is even possible to detect faces and crop around the face, allowing you to intelligently crop thousands of photos. #croppedIm.show() #Show the cropped imageįileName, fileExtension=os.path.splitext(img)ĬroppedIm.save(fileName+'_crop.png', 'PNG') #Save the cropped image Im=resizeAspect(im,(600,600)) #Re-size ImageĬenter = #Calculate Centerīox = (center-300, center-300, center+300, center+300) #Defines a box where you want it to be cropped If min(w,h)<600: #Check if either dimension is smaller then 600 W,h = im.size #Get image width and height ImgList=glob.glob('C:/icons/*.png') #Find all png images in a directoryįor img in imgList: #Loop through all found images Return im.resize((int(w*aspect),int(h*aspect)),Image.ANTIALIAS) #Function to resize image, preserving aspect ratioĪspect=min(size/float(w), size/float(h))

Batch resize images mac os x code#

This code should do exactly what you want and should process a couple pictures per second, depending on the image size: #Python 2.7, PIL 1.1.7 Thus you can easily write a simple script to find all images in a folder and perform the operation. If you like programing, you can use Python (computer language) and an excellent library know has PIL to crop, re-size, plot histograms, get individual pixel vales, etc. How-to: install, drag'n'drop the images you want to crop into it, 'save all to new folder', and give it a basename or % to use the original filename, and then in the next dialog select 'autocrop' and fill the boxes for width and height, and select alignment 'center' for height and width, and check 'resize if smaller'.

Batch resize images mac os x plus#

Update: I am now done programming this feature into Image View Plus More 2.4: resize: no/if smaller than/if bigger than/both

I've long wanted to add a feature like this to my program 'Image View Plus More', and I guess the feature settings should be something like: And only resize to 600 if one dimension is smaller than 600? If I read your statement right, you want to crop 600 pixels from X and Y centered in both dimensions, if both dimensions are 600 or more. For example, look at aspect ratio, and always resize the shortest dimension to X and crop Y (centered/right/left) pixels.

Batch resize images mac os x how to#

It is because it is not a 'one true solution' kind of task, as it is usually human judgement call, how to crop the image, so it can only be done by bootstrapping certain conditions. First I thought you wanted batch resize, which many programs can do.īut then I realized you want to do a combination of resizing and cropping, and you want the computer to calculate how to best cut out 600圆00 pixels from the image dynamically.