Grab feature - it doesnt work on iPod Touch 4G
Ive tried several times taking pictures with the camera in a 4G iPod Touch and nearly every time it fails to recognize most or all of the numbers and often puts them into wrong positions or even puts numbers where there are none. Its a novel idea, but the execution has serious problems. Perhaps the developer needs to tweak things for the camera in the 4G iPod Touch. The camera on the iPhone is 5MP (about 2500x2000) and the camera on the iPod Touch 4g is about 0.7MP. Sometimes the program did work with an imported screen shot taken on an iPad and sometimes it did work with the iPod Touch 4G camera. The weirdest thing of all is that with some images I got different results every time I ran the program on the SAME image.
After more testing it appears that the problems happen more when landscape photos of other puzzles are used (which I suppose makes sense as there are a lot fewer pixels in that direction). After more testing it does work with the iPod Touch 4G camera some of the time, if you take portrait photos but much less so with landscape ones. But I took several photos of the same puzzle and got different results from each, so the methods the program uses seem to be very picky about the image.
Until the developer fixes the problem or Apple puts a higher res camera in the iPod Touch 4G, I would stay away from this app if you use a 4G iPod Touch, or at the least give the Lite version of this program a try before plunking down your $1.99.
I do like the Sudoku aspects of the program - its great at solving puzzles, and its very handy for finding slight variations of puzzle solutions by just changing one or two of the cell values. It has the ability to show all the "pencil
-Bob
ReallyDeepYogurt about
Sudoku Grab, v1.7.6