Feat:No content-based duplicate image detection (same image added multiple times in DB)

[harsh1519]

Describe the feature

Currently PictoPy identifies images only by their file path. If the same image file is:

Copied to another folder

Downloaded multiple times

Renamed

Or exists in backups

…it is stored as a new independent image in the database.

This causes:

Duplicate thumbnails

Duplicate metadata

Duplicate face processing

Duplicate tagging

Waste of storage and processing

No way to detect or manage duplicates

Add ScreenShots

Same images:
Harsh_Shah.jpg exists in two folders

🔍 Current Behavior:

Images are uniquely identified by path

Same image in different folders = separate DB rows

No content hash or duplicate detection exists

✅ Expected Behavior:

System should compute a content hash (SHA256 or similar)

Store it in DB as image_hash

Allow:

Finding all images with same content

Showing duplicate groups

Letting user decide what to do with them (keep/delete/merge)

Record

• I agree to follow this project's Code of Conduct
• I want to work on this issue

[github-actions]

👋 Thanks for opening this issue! The maintainers will review it shortly. Till then, do not open any PR. This is a strict rule we like to follow around here :)

[harsh1519]

hey @rahulharpal1603 i would like to work on this