About Common Vision Blox

What is Common Vision Blox (CVB)?

Execution Time of CopyImageArea and DuplicateImage

The function DuplicateImage takes 20 ms to execute on a PIII 450 for one CCIR b/w image. The function CopyImageArea even takes significantly longer. Why?

Problems Reading a PDF417 Barcode

When I try to read a PDF417 barcode with one of the tutorial applications of CVB Barcode I always get the result "no code read". However my images and the barcode look good enough to be read. Is there anything I can do?

FAQ (CVB Foundation Package (until CVB version 10.2, Win 32 only))

How to Quickly Rotate an Image in CVB

What is the fastest way to rotate a (live) image in CVB?

Image Scaling in CVB

Is it possible scale an image in CVB, e.g. to double the image size?

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