Inspired by this reddit post:
insert reddit post
Using osxphotos library for Python, we can quickly access all photos in an Apple Photos library.
Turns out each photo in the Apple Photos library has been assigned a set of scores:
behavioral curation failure harmonious_color highlight_visibility immersiveness interaction interesting_subject intrusive_object_presence lively_color low_light noise overall pleasant_camera_tilt pleasant_composition pleasant_lighting pleasant_pattern pleasant_perspective pleasant_post_processing pleasant_reflection pleasant_symmetry promotion sharply_focused_subject tastefully_blurred well_chosen_subject well_framed_subject well_timed_shot
Some of these scores are ranged between 0-1 such as
promotion, etc. These scores are used to determine if a photo should be featured more in the App UI.
However, we can also make use of scores like
noise which ranges from -1-0. While it seems like nothing is in the Apple’s Photos app that does anything with these scores, we can use these scores to pick out potential photos for cleanup/deletion.
Additionally, there are scores like:
pleasant_post_processing which ranges from both ends like -1 to 1. For these scores, we can also just pick out the minimum.
Note that all of these scores are calculated automatically using Apple’s blackbox ML, so it might have lots of biases.
Goal: (1) write a script that looks through all of the photos in my library, determine if a photo should be deleted ((2) using a criteria function), and adds them to Apple Photos album for
First we need to install osxphotos:
pip install osxphotos
Once we have it installed, we actually need to modify a single line in the library. Go to where the python library is installed, and modify the
Add this line:
from .photosalbum import PhotosAlbum
This exposes the
PhotosAlbum class to
osxphotos interface so we can use the AppleScripts builtin to the osxphotos library to add photos to libraries easily (task 3)
Once we have the osxphotos library, it’s pretty straight forward:
import osxphotos # Get the Apple Photos library pd = osxphotos.PhotosDB('insert path to .photoslibrary') # Gets a list of photos ps = pd.photos()
ps here is a list of
osxphotos.PhotoInfo object. We can reference the
score field. This gives us a
osxphotos.ScoreInfo object, and we can then reference any of the score (using the list of scores above).
For example, this line takes
ps and sorts it based on the failure score from lowest to highest
sorted(ps, key=lambda photo: photo.score.failure)
As part of the goal (task 2) we need to create a function that outputs a list of photos where we think we can delete.
Based on preliminary inspection of scores of all photos/videos in my personal photo library, I can think of a few observations:
failurescore heavily penalizes video (possibly due to motion in each frames)
failurescore < -0.1
harmonious_colorscore < -0.1
interesting_subjectscore is < -0.7; these are likly pictures of documents and random things. If this score is < -0.9, they’re likely memes ore screenshots
intrusive_object_presenee< -0.999; although becareful with this score since it mis-identifies a lot of “artistic” expressions where objects are placed in front of the subjects on purpose.
noisescore below -0.75
pleasant_perspective < -0.6
Let’s put all this togther into a function/filter:
def exportBadPhotos(ps: list[osxphotos.PhotoInfo]): # Returns true if it fits the failure criteria def criteria(p: osxphotos.PhotoInfo) -> bool: return any([ p.score.failure < -0.1, p.score.harmonious_color < -0.1, p.score.interesting_subject < -0.7, p.score.intrusive_object_presence < -0.999, p.score.noise < -0.75, p.score.pleasant_composition < -0.8, p.score.pleasant_lighting < -0.7, p.score.pleasant_perspective < -0.6, p.score.tastefully_blurred < -0.9, p.score.well_framed_subject < -0.7, p.score.well_timed_shot < -0.7 ]) bad_ps = list(filter(criteria, ps))
As previously mentioned, because of the modification we made to the library we can now use
osxphotos.PhotoAlbum class to interface with Apple Photos app and create an album – powered by AppleScripts.
Let’s create an album object with album name of “Bad Photos”
album = osxphotos.PhotosAlbum('Bad Photos')
From here on now, we just need to add the list of
osxphotos.PhotoInfo objects to the album:
It will take a few seconds or minutes but AppleScript will do the rest.
When we return to Apple Photos, we have a new album with all the photos that fit our failure criteria we wrote earlier.
Of course this now the time to manually sift through each one of them and mark them for deletion.
Of course, since this whole idea hinges off of the scores produced by Apple Photos – which is ML, it’s far from perfect. There’s likely a lot of photos that are bad and that are not caught. Perhaps one can fine-tune the criteria function, perhaps one cannot as the scoring MLs are just not good enough. Perhaps a few number is far too simplistic to define whether a photo is good enough.
But at least this operation saves time and pretty much does the same thing what an $26/year app does. Cough cough Gemini 2.