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How do I convert an image from 1 bit (binarized) to 8-bit grey-scale? If images come in at 1bpp, create a byte and simply change the bits that are 1 to a 255, and leave the bits that are 0, at 0.
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How do I convert an image from color to 8-bit grey-scale? The basic formula is: Y = 0.299 * R + 0.587 * G + 0.114 * B This wiki article discusses this issue in more detail.
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Can I get source code from Omniplanar. Sorry, but no.
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Onto what processors has Omniplanar ported Volo 's code? Volo has been ported to most common platforms such as X86, ARM and MIPS. Download Volo's Technical Datasheet (pdf) for a complete list of platforms that have been ported to before. Volo can also be ported to any 32-bit platform upon request...
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How is Volo software delivered? Omniplanar will typically email or make Volo available on our ftp site. The software package will contain a compiled library, documentation and all of the supporting files necessary to integrate Volo into your application. The supplied object file is typically protected...
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Can Volo read inverse bar codes (bars are white, spaces are black)? Yes, Volo supports inverse reading of all symbologies whose standards support it such as 2D matrix codes.
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Does Volo read mirror image bar codes? Yes.
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Does having more pixel resolution make a bar code easier to read? Not necessarily. There is a minimum number of pixels required per narrow element for 1D and 2D symbologies. Beyond these minimums adding pixels per narrow element will not necessarily help decode times. Providing significantly higher pixels...
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What is the minimum pixel resolution needed by Volo to successfully decode bar code symbologies? Minimum resolution for 1D codes is 1.6 pixels per narrow element and 2.75 pixels per narrow element for 2D matrix codes.
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Can Volo decode non-ECC 200 Data Matrix symbologies(ECC 000 - 140)? No. These specifications are obsolete. Only the current ECC 200 specification is supported for Data Matrix.