Ever Since my iPhoto collection was transferred to Photos, I have many low resolution images. For what purpose are they and how do i delete them (en masse)
iMac, iOS 10.3.2
You could try this AppleScript to find all photos with a width or height smaller than a given threshold:
(* How to use this script:
This script will split the selection into two albums -
- one album with pictures with the largest dimension smaller or equal than the given pixel size
- one album with pictures with the largest dimension larger than the given pixel size
Open this script in Script Editor. Launch Photos.
Select the Photos you want to distribute between the albums.
When all all photo are selected, press the "Run" button in Script Editor.
Author: léonie
*)
set defaultSizeThreshold to 256 -- change this to the pixel size threshold you want for a photo to be counted as small
set dialogResult to display dialog ¬
"Enter the pixel size threshold for small photos: " buttons {"Cancel", "OK"} ¬
default answer (defaultSizeThreshold as text)
set AspectRatioThreshold to (text returned of dialogResult) as integer
set smallAlbumName to "smallerThan" & AspectRatioThreshold-- the album to collect the small photos
set largeAlbumName to "largerThan" & AspectRatioThreshold-- the album to collect the larger photosphotos
tell application "Photos"
activate
-- Ensure that the albums do exist
try
if not (exists container smallAlbumName) then
makenewalbumnamedsmallAlbumName
end if
set theSmallAlbum to containersmallAlbumName
if not (exists container largeAlbumName) then
makenewalbumnamedlargeAlbumName
end if
set theLargeAlbum to containerlargeAlbumName
if not (exists container "SkippedPhotos") then
make new album named "SkippedPhotos"
end if
set theSkippedAlbum to container "SkippedPhotos"
on error errTexttwonumbererrNumtwo
display dialog "Cannot open albums: " & errNumtwo & return & errTexttwo
end try
-- process the selected photos from the All Photos album
try
set imageSel to (get selection)
on error errTexttwonumbererrNumtwo
display dialog "Cannot get the selection: " & errNumtwo & return & errTexttwo
end try
set smallPhotos to {} -- the list of small photos
set largePhotos to {} -- the list of larger photos
set skippedPhotos to {} -- the list of skipped photos
-- check, if the album or the selected photos do contain images
if imageSel is {} then
error "Please select some images."
else
repeat with im in imageSel
try
tell im--get the pixel size
set h to its height
set w to its width
end tell
on error errText number errNum
display dialog "Error: " & errNum & return & errText & "Trying again"
try
delay 2
tell im
set h to its height
set w to its width
end tell
on error errTexttwonumbererrNumtwo
display dialog "Skipping image due to repeated error: " & errNumtwo & return & errTexttwo
end try
end try
set noDimensions to (w is missing value) or (h is missing value)
if noDimensions then
set skippedPhotos to {im} & skippedPhotos
else
if (w ≤ h) then
set largestDimension to h
else
set largestDimension to w
end if
if (largestDimension ≤ AspectRatioThreshold) then
set smallPhotos to {im} & smallPhotos
else
set largePhotos to {im} & largePhotos
end if
end if
end repeat
addsmallPhotostotheSmallAlbum
addlargePhotostotheLargeAlbum
addskippedPhotostotheSkippedAlbum
return "small photos: " & (length of smallPhotos) & ", larger photos : " & (length of largePhotos) & ", skipped: " & (length of skippedPhotos)
end if
end tell
-- As a User Tip: Script: Search for Photos by the Dimensions in Pixel Size
That depends on undisclosed details
what version of the OS and of Photos do you have? Where are you seeing these low resolution images? What is the source device and the pixel dimensions of one of them? Are they duplicates or the only copy? Exactly step by step how did you transfer your photos from iPhoto to Photos?
LN
I have OS Sierra 10.12.4 and Photos 2.0. These are in my main photos folder and are duplicates of larger images. These are about 50 - 60 kb. I let the software update transfer the files from iPhoto to Photos.
Thanks Larry.
It sounds like you somehow imported your iPhoto library to Photos (that is hard o do as Photos will not import a library) or sometime in the past have imported an old iPhoto library into iPhoto (which used to be easy to do) - NEVER import a library as it does not work and creates a mess
Do you still have the old iPhoto Library (it is a really good idea to keep the for no less than three months and longer is better) and is it good (no low resolution photos in it)? And how many photos have you added to Photos since migrating from Photos? And is the iPhoto library good (no small photo in it - if there are then they obviously migrate along with everything else and the error occurred in the past prior to the migration to Photos)
If you have the iPhoto library and it is good and have not added too many photos since migrating start over - in all photos select all new photos since the migration and export the unmodified original to a desktop folder the quit Photos and rename the Photos library (maybe change the extension to .old) and drag the iPhoto library to the Dock to migrate it then import the new photos that you exported
LN
Thanks. Yes I have a mess. I do have the original iPhoto library on an old mac. I probably have about 500 - 1,000 new images since Apple migrated to Photos. At the fame time as these low res duplicates, I also have the facial recognition feature. It went on steroids with the transfer. I now have facial recognition of everything in my system including, statues, paintings, comic art as well as hundreds of new faces that were not in my initial facial recognition folder. The conversion also created thousands of event folders many with only one or two images.
Sounds as though I have an extensive summer project on my hands. Any further instructions or recommendations you could make would be exceedingly helpful. I have always had such complete faith in Apple products that I've been frustrated I could deal with attempting to resolve it until now.
Th directions are posted for going back and starting over if that is what you want and if your iPhoto library is good (there is a good chance it is not but only you can tell that)
If you want to delete the low resolution photos it is more time consuming and manual - PhotoSweeper for Photos may be able to hel with finding the low res photos for deletion
LN
I also have these low res images in my "All Photos" folder under albums.
Looks interesting. Just where do I find Script Editor? I searched both the Mac and the App store and couldn't find anything??
Script Editor.app should be installed on your Mac in the Applications folder > Utilities.
Ever since my iPhotos was transferred to Photos I have many low resolution images. What are their function and how do I delete them?
