FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Damage can range from minor scratches, partial obstruction of the code by blotches, stains, or even debris causing torn or entirely missing barcodes. Distortion – Several environmental factors can contribute to barcode distortion in terms of shape, contrast, element uniformity, and substrate integrity.

Detailed explanation-2: -Barcodes represented data by varying the widths and spacings of parallel lines. If the lines are partly ripped or scribbled, as long as there is a valid part, we can still read them. If the lines are severely damaged, but the human-readable text is still there. We can use OCR to read them.

Detailed explanation-3: -Any kind of damage that obstructs barcode elements from the view of the reader – unintended material abrasions, marks, surface stains, or excess material (debris or even mounting fixtures) – can cause no-read results.

Detailed explanation-4: -Misreads in the form of a perfectly scanning but wrong barcode can be caused by scanner number substitution. Somehow the printed barcode image is wrongly decoded by the scanner. A poor quality printed barcode can contribute to this, but barcode structure also contributes.