Thanks for your help.I have a directory consist 44 images code39 barcodes encode the characters 0 -> 9, A-> Z ,%,$, space ,+,-,. My images were taken on a binary image with 0 is black bar, 1 is the white bars, after I read all images in this directory, pleaase help me how to save all the images were read on a vector-specific for barcode image to input training artificial neural network