Detects Code39, EAN, and Code128 barcodes in an image.
EditBy: This project is based on the CodeProject article: Reading Barcodes from an Image - II by qlipoth. I asked and got permission from qlipoth to publish an enhanced version of his code.

Features:

# The EAN Reader also reads the 2 or 5 Digits supplemental barcodes often found on books and periodicals. As shown in the screenshot, a supplemental barcode will be returned as a separate barcode String starting with S.
# The Code128 reader has mixed code page support. The serial number in the sample image Code128test-CodeC.png starts as Code C, but the last digit is added as Code B.
# The code uses a more advanced approach for measuring the narrow bar width than qlipoths and Liedblads versions. This should allow for better detection rates when reading EAN and Code128. In Code39, we only need to distinguish Between narrow and wide bars, but the other barcode types use four different bar widths.
# I have added the concept of barcode zones, to allow detection of differently scaled barcodes on the same scan line. In Code128test-CodeC.png, this enables the software to read both the serial number and the UPC code that are printed side-by-side. you can free download Barcode now.