On Fri, Feb 01, 2019 at 04:57:37PM +0800, myp...@gmail.com wrote: [...] > > > -#define WEIGHT_LUT_NBITS 9 > > > -#define WEIGHT_LUT_SIZE (1<<WEIGHT_LUT_NBITS) > > > +#define WEIGHT_LUT_SIZE (800000) // need to > 300 * 300 * log(255) > > > > So the LUT is now 3.2MB? > > > > Why 300? 300*300*log(255) is closer to 500 000 than 800 000 > I just seleted a value > 300*300*log(255) (500 000 more precise) for > this case at liberty in fact , the other option is use a dynamic > allocation memory for weight_lut table size base on the > max_meaningful_diff :), but maybe seems pretty obvious, I think 3M is > not a big burden for nlmeans
It's probably fine yes, I'm just confused at the comment: why does it *needs* to be > 300 * 300 * log(255)? -- Clément B.
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