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I have many photo scans which consist of multiple images scanned on a single sheet alike this one

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Is there any tool which allows splitting them into separate files in an automatic way without quality-loss?

The images for the most part are in TIFF format, if that matters.

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  • My HP multifunction device's scanning software attempts to do so. It isn't very good at it.
    – Eric S
    Mar 8, 2020 at 0:05
  • so you didn't find any alternative, yep?
    – Suncatcher
    Mar 8, 2020 at 6:59
  • No, but I didn’t look for one either.
    – Eric S
    Mar 8, 2020 at 14:35

2 Answers 2

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A few products are reviewed at https://turbofuture.com/graphic-design-video/Whats-the-Best-Multiple-Photo-Scanning-Software. Many have a maximum number of photos that they can automatically detect and so wouldn't work on a contact sheet. Auto-split products operate with edge detection to define split boundaries so if the borders of the sheet images are black splits won't get detected. In the example below (made with Caption Pro), not all images are detected and some of these have misplaced boundaries. Manual definition of the split boundaries is probably the only way to achieve what you wantSplit of contact sheet using Caption Pro

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  • Thank you so much! I will try the aps from the above review. Fortunately my sheets has not black splits, it is just an example I gave for reference
    – Suncatcher
    Nov 1, 2021 at 9:54
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I want to post my testing results in case somebody also interested in the topic.

I inspected the apps from the review kindly suggested by Arthur and built a following ranking:

  1. ScanSpeeder. Showed the best results, it recognized all the photos from the non-standard canvas with distorted edges. In fact the canvas was the dirty table with a cover of grey-brown color, which is extremely difficult for image-recognition software. It recognized it all, with 90% precision. Excellent.

  2. AutoSplitter. Showed worse results than ScanSpeeder, from 5 images on the canvas it recognized 3 and partly the fourth. Not bad.

In fact there is nothing more I can add to ranking.

ImageSplit from CaptionPro did not detected nothing, besides it is heavily advertised like professional software. It is useless.

VueScan is useless either, it does not allow processing arbitrary images, only captured from scanner.

Photoshop I didn't tested, I trust it can do such simple tasks, he-he, but it lackas automation.

RansenScan didn't detected nothing either, or I didn't understand the principles of its functioning.

Regarding GIMP and its DivideScannedImages script I wasn't successfull in installing it, it is 7 years old so it may be even not applicable to current GIMP at all. I will try and if succeeded, will report here.

I want to stress here, that I was interested in an automated way of doing splitting, so I didn't check manual way, only recognition algorithms. Each of the above apps has manual selection mode of extracting images from canvas.

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