One line summary | Duplicate images at different levels of rotation contained within collection |
Detailed description | Scanned images provided by third party over several accessions. Later accessions contain duplicate images at different levels of rotation (1-2% to left). Comparison of selected images suggest that the images are visually identical, suggesting that they originated from the same source and that a processor rotated the images at a later date. It would be helpful to identify such images across a large collection. |
Issue champion | Gareth Knight |
Possible approaches | Text OCR, Map objects to vector using ImageJ |
Context | Image Collection Context![]() |
AQuA Solutions | Identifying rotated duplicate images using pHash![]() |
Collections | East London Theatre Archive |