Another important question is the speed of recognition.
There are several tips that can help in faster recognition:
- in general, the execution time of recognition is proportional with the size of the document. If many documents must be processed with barcodes being in the same position, it is advisable to limit the area of interest to this interval.
- at scanning barcode, do not choose too high resolution. e.g. if we scan DM barcode, the resolution setting is proper, if the black squares are approx. 10 pixels size, increasing the resolution does not enhance the recognition while it increases the execution time and the file size
- if we know the type of barcode, do not use the general recognition method, but select the recognition of this special type.
- if we are sure that the barcodes are near horizontal, do not use skewed reading.
- decrease the color depth accordingly. e.g.: do not store color information for black and white barcode images.