 Charlie Vieth
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427b8d133e
Optimized Nearest-Neighbor function - 2x faster
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11 gadi atpakaļ |
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Charlie Vieth
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80b3fc2b3f
Pre-calculate start offset, optimize bound check
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11 gadi atpakaļ |
 jst
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016a61cd31
Optimize data-locality for a huge increase in processing speed.
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11 gadi atpakaļ |
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jst
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a83cb40860
Remove some redundancies.
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12 gadi atpakaļ |
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jst
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446eea2f7b
Remove LUT based filters.
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12 gadi atpakaļ |
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jst
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9884534579
Cache kernel weights for each row.
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12 gadi atpakaļ |
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jst
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45368ad0cd
Multiply instead of dividing
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12 gadi atpakaļ |
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jst
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314cea6612
Avoid temporaries to save some cycles.
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12 gadi atpakaļ |
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jst
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494d8de4e5
Speedup calculation by exploiting the separability of the resizing filter.
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12 gadi atpakaļ |
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jst
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a85ea9eaa8
Rename Lanczos functions using look-up tables to Lanczos2Lut, Lanczos3Lut and restore Lanczos2, Lanczos3 to give users the choice between higher speed or higher accuracy.
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12 gadi atpakaļ |
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jst
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9e5ed35b85
Move splineKernel function nearer to Lanczos definitions.
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12 gadi atpakaļ |
 Geoff Adams
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c1b8c4986e
Use a lookup table to speed up the Lanczos kernel
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12 gadi atpakaļ |
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jst
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c37f8f8470
gofmt
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13 gadi atpakaļ |
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jst
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62777ac833
Precalculate bicubic factors, save some cycles.
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13 gadi atpakaļ |
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jst
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6448fff2ee
Generalize spline based filters
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13 gadi atpakaļ |
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jst
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82ab8b977c
Make kernel the only dependency of convolution1d
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13 gadi atpakaļ |
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jst
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e512502b3c
Use range for more idiomatic Go
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13 gadi atpakaļ |
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jst
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bf09bbe0a3
boolToUint: true -> 1
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13 gadi atpakaļ |
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jst
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0c69e0e0b7
Change order of fields in filterModel
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13 gadi atpakaļ |
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jst
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bf006ca38d
Description added
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13 gadi atpakaļ |
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jst
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dd1c157427
Include kernel boundary check
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13 gadi atpakaļ |
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jst
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3e06045c3f
Speed up computation: Try to avoid Image.At() as much as possible -> specialized color access for some image types
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13 gadi atpakaļ |
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jst
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e548f52385
Blur input image during downscaling by scaling the filter kernel to prevent moires in the output image
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13 gadi atpakaļ |
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jst
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d0b2b9bc39
Added MitchellNetravali, changed Lanczos a bit
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13 gadi atpakaļ |
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jst
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c980eecff5
Small simplification
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13 gadi atpakaļ |
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jst
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e96bbe5547
Unify filters and their dependencies
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13 gadi atpakaļ |
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jst
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3fc31c95cc
Kernel simplified
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13 gadi atpakaļ |
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jst
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eaf9383af0
filters.go simplified
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13 gadi atpakaļ |
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jst
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524fd851ea
Casting float to int has the same properties as math.Floor
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13 gadi atpakaļ |
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jst
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d93161631c
Use Kernel normalization for more accurate Lanczos resampling. Lanczos2 filter added
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13 gadi atpakaļ |
