Image to Text (iPhone)

Question

How can I get the texts presented on an image ?

Description : "I am developing one application which needs to get the text presented on an Image and show the text in an another view after putting the texts in to some frames."

EDIT : From this I'm getting some Values and also the ".png" but the characters I am getting is like ASCII value or something.

UIImage*img=[UIImage imageNamed:@"btn_reset.png"]; NSData *dataObj = UIImagePNGRepresentation(img); NSString*str= [[NSString alloc] initWithData:dataObj encoding:NSASCIIStringEncoding]; printf("Image is %s",[str UTF8String]);

Any tutorial/link/solution would be very helpful.

Thank You !

Are you seriously trying to do OCR this way? – Till May 25 '11 at 11:31 — Till, May 25 '11 at 11:31
@Till - Can you help me out ? – Akshay May 25 '11 at 11:59 — Akshay, May 25 '11 at 11:59

score 4 · Answer 1 · answered May 25 '11 at 11:34

4

I couldn't understand the question clearly, but I think you are referring to OCR. One of the main open-source lib for this is: Tesseract

Some one has ported this lib for ios. You can get the code from: https://github.com/rcarlsen/Pocket-OCR/

answered May 25 '11 at 11:34

Vikram.exe

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@Akshay, It is actually working for me but with a crash some times. – Vikram.exe May 25 '11 at 12:24
May be. Will try it out again and let you know Vikram.Thanks :) – Akshay May 25 '11 at 12:27

score 2 · Accepted Answer · edited May 23 '17 at 10:34

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you might get solution from following link: Is there any iphone Class that converts images to text format?

edited May 23 '17 at 10:34

Community

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answered May 25 '11 at 11:30

DivineDesert

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Thanks Dimple , Some more elaborated thing will help me out as I am a beginner. :) – Akshay May 25 '11 at 11:40
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This might help you along with video http://robertcarlsen.net/2009/12/06/ocr-on-iphone-demo-1043 – DivineDesert May 25 '11 at 11:44

score 1 · Answer 3 · answered May 25 '11 at 11:33

1

If you just want to print the string

UIImage*img=[UIImage imageNamed:@"btn_reset.png"];
NSData *dataObj = UIImagePNGRepresentation(img); 
NSString*str= [[NSString alloc] initWithData:dataObj encoding:NSASCIIStringEncoding];        
NSLog("Image is %@",str);

If you still dont get it change the encoding

answered May 25 '11 at 11:33

visakh7

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It doesn't fill all my requirements but Thanks for the response. :) – Akshay May 25 '11 at 11:40

Image to Text (iPhone)

3 Answers3