Something wrong with FTK OCR

A case on business secret the suspect took lots of photos and screenshots from BOM, RD papers ... We have to conduct a keyword search for find out what he/she had stolen. We ' re not going to spend time to "take a look" at all documents and pictures so we need to use OCR function to figure it O Ut. As you could see this FTK OCR options support file type like Pdf,jpg,tiff. etc.

1.First we have a to check OCR function when processing evidence.

2. Sorry I can ' t show you guys contents in the evidence. So I use the other files instead of the files in the evidence. The search Critereia is "apple" or "FBI". As we could see, the search result is 20hits on a file-order.pdf. No any other htis on other files in the evidence.

3.But What's the other files??? Actually some pictures also has "apple" or "FBI", but FTK could not recognize them. Guys could take a look at those, pics as below;

4.Let ' s use of other OCR tool like JOCR to figure it out. Fortunately JOCR could recognize texts in those both pictures and extract them successfully.

5. To my surprise ftk could no extract texts on those pics. I used to trust it OCR function, but now my confidence on FTK's OCR function is eroded.

Something wrong with FTK OCR