difPy 3.0.7

difPy Python Duplicate Image Finder - searches for duplicate or similar images within folders.

Duplicate Image Finder (difPy)

Tired of going through all images in a folder and comparing them manually to check if they are duplicates?

The Duplicate Image Finder (difPy) Python package automates this task for you!

Read more on how the algorithm of difPy works in my Medium article Finding Duplicate Images with Python.

For a detailed usage guide, please view the official difPy Usage Documentation.

---

Description

DifPy searches for images in one or more different folders, compares the images it found and checks whether these are duplicates. It then outputs the image files classified as duplicates as well as the images having the lowest resolutions, so you know which of the duplicate images are safe to be deleted. You can then either delete them manually, or let difPy delete them for you.

DifPy does not compare images based on their hashes. It compares them based on their tensors i. e. the image content - this allows difPy to not only search for duplicate images, but also for similar images.

Basic Usage

Use the following function to make difPy search for duplicates within one specific folder and its subfolders:

from difPy import dif
search = dif("C:/Path/to/Folder/")

To search for duplicates within mutliple folders and their subfolders:

from difPy import dif
search = dif(["C:/Path/to/Folder_A/", "C:/Path/to/Folder_B/", "C:/Path/to/Folder_C/", ... ])

Folder paths must be specified as standalone Python strings, or within a Python list.

Output

DifPy returns various types of output that you may use depending on your use case:

A JSON formatted collection of duplicates/similar images (i. e. match groups) that were found, where the keys are a randomly generated unique id for each image file:

search.result

> Output:
{20220819171549 : {"location" : "C:/Path/to/Image/image1.jpg",
                   "matches" : {30270813251529 : "location": "C:/Path/to/Image/matched_image1.jpg",
                                                 "mse": 0.0},
                               {72214282557852 : "location": "C:/Path/to/Image/matched_image2.jpg",
                                                 "mse": 0.0},
                   ... }
 ...
}

A list of duplicates/similar images that have the lowest quality among match groups:

search.lower_quality

> Output:
["C:/Path/to/Image/duplicate_image1.jpg", 
 "C:/Path/to/Image/duplicate_image2.jpg", ...]

A JSON formatted collection with statistics on the completed difPy process:

search.stats

> Output:
{"directory" : ("C:/Path/to/Folder_A/", "C:/Path/to/Folder_B/", ... ),
 "duration" : {"start_date": "2023-02-15",
               "start_time" : "18:44:19",
               "end_date" : "2023-02-15",
               "end_time" : "18:44:38",
               "seconds_elapsed" : 18.6113},
 "fast_search": True,
 "recursive" : True,
 "match_mse" : 200,
 "files_searched" : 1032,
 "matches_found" : 852,
 "invalid_files": {"count": 4}}

Additional Parameters

DifPy supports the following parameters:

dif(*directory, fast_search=True, recursive=True, similarity='normal', px_size=50, 
    move_to=None, show_progress=True, show_output=False, delete=False, silent_del=False, 
    logs=False)

CLI Usage

You can make use of difPy through a CLI interface by using the following commands:

python dif.py -D "C:/Path/to/Folder/"

python dif.py -D "C:/Path/to/Folder_A/" "C:/Path/to/Folder_B/" "C:/Path/to/Folder_C/"

It supports the following arguments:

dif.py [-h] -D DIRECTORY [-Z OUTPUT_DIRECTORY] [-f {True,False}]
       [-r {True,False}] [-s SIMILARITY] [-px PX_SIZE] 
       [-p {True,False}] [-o {True,False}] [-mv MOVE_TO]
       [-d {True,False}] [-sd {True,False}] [-l {True,False}]

The output of difPy is then written to files and saved in the working directory, where "xxx" in the output filesnames is a unique timestamp:

difPy_results_xxx.json
difPy_lower_quality_xxx.csv
difPy_stats_xxx.json

---

For a detailed usage guide, please view the official difPy Usage Documentation.