The blind person can be used. This product can be read the value for the dollor . It's convenint for the low vision

1.Image size not less than a quarter of the notes.

2.Image resolution ratio is not less than 240*320 PX.

3.Grey level 256 (Per-pixel 8-BIT) .

4.Geometric accurary: Distortion less than 5%.

5.SNR not less than 50 .

6.Processing Capacity not less than 80 MIPS .

mini light currency detector to read dollor