ImageSharp

Commit Graph

Author	SHA1	Message	Date
Simon Cropp	bcbd4726a6	use var where apparent (#972 ) * use var where apparent * use var where apparent * should use Rgb24	7 years ago
Simon Cropp	270a073fc6	Cleanup (#965 ) * redundant () * redundant stirng interpolation * use method groups * redundant unsafe * redundant qualifiers * redundant () * redundant init * redundant init * redundant casts * redundant casts	7 years ago
Simon Cropp	30804cfefd	remove unused variables and methods (#963 ) * remove unused variables and methods * remove some redundant variables * remove some redundant variables * redundant variables * Update DrawTextOnImageTests.cs * Minor optimizations * cleanup	7 years ago
Simon Cropp	c2555b6199	fix some spelling (#962 )	7 years ago
Simon Cropp	2c04d6b036	redundant usings (#960 )	7 years ago
Brian Popow	5283c6db6d	Feature: adaptive histogram equalization (#673 ) * first version of sliding window adaptive histogram equalization * going now from top to bottom of the image, added more comments * using memory allocator to create the histogram and the cdf * mirroring rows which exceeds the borders * mirroring also left and right borders * gridsize and cliplimit are now parameters of the constructor * using Parallel.For * only applying clipping once, effect applying it multiple times is neglectable * added abstract base class for histogram equalization, added option to enable / disable clipping * small improvements * clipLimit now in percent of the total number of pixels in the grid * optimization: only calculating the cdf until the maximum histogram index * fix: using configuration from the parameter instead of the default * removed unnecessary loops in CalculateCdf, fixed typo in method name AddPixelsToHistogram * added different approach for ahe: image is split up in tiles, cdf is computed for each tile. Grey value will be determined by interpolating between 4 tiles * simplified interpolation between the tiles * number of tiles is now fixed and depended on the width and height of the image * moved calculating LUT's into separate method * number of tiles is now part of the options and will be used with the sliding window approach also, so both methods are comparable * removed no longer valid xml comment * attempt fixing the borders * refactoring to improve readability * linear interpolation in the border tiles * refactored processing the borders into separate methods * fixing corner tiles * fixed build errors * fixing mistake during merge from upstream: setting test images to "update Resize reference output because of improved ResizeKernelMap calculations" * using Parallel.ForEach for all inner tile calculations * using Parallel.ForEach to calculate the lookup tables * re-using pre allocated pixel row in GetPixelRow * fixed issue with the border tiles, when tile width != tile height * changed default value for ClipHistogram to false again * alpha channel from the original image is now preserved * added unit tests for adaptive histogram equalization * Update External * 2x faster adaptive tiled processor * Remove double indexing and bounds checks * Begin optimizing the global histogram * Parallelize GlobalHistogramEqualizationProcessor * Moving sliding window from left to right instead of from top to bottom * The tile width and height is again depended on the image width: image.Width / Tiles * Removed keeping track of the maximum histogram position * Updated reference image for sliding window AHE for moving the sliding window from left to right * Removed unnecessary call to Span.Clear(), all values are overwritten anyway * Revert "Moving sliding window from left to right instead of from top to bottom" This reverts commit `8f19e5edd2`. # Conflicts: # src/ImageSharp/Processing/Processors/Normalization/AdaptiveHistEqualizationSWProcessor.cs * Split GetPixelRow in two version: one which mirrors the edges (only needed in the borders of the images) and one which does not * Refactoring and cleanup sliding window processor * Added an upper limit of 100 tiles * Performance tweaks * Update External	7 years ago
Anton Firszov	bee3a67a71	extend the CopyBuffers benchmark	7 years ago
Anton Firszov	d72db6dc78	fix license text in CopyBuffers benchmark	7 years ago
Anton Firszov	7f0a245b6a	improve benchmark: ArrayCopy -> CopyBuffers	7 years ago
Jason Nelson	d645b5599e	Nits - Benchmarks (#884 ) * Update metadata names * Use WithIterationCount * Format Benchmark documents * Update copyright assignment to Six Labors & Contributors * Update deps * React to Benchmark library update	7 years ago
Jason Nelson	cf12782fe3	Update BenchmarkDotNet to 0.11.3	7 years ago
Anton Firszov	55ac40327a	reimplement Block8x8F.CopyTo2x2	7 years ago
Anton Firszov	a350621d76	benchmarks for current state	7 years ago
Anton Firszov	437d080180	refactor Vector4 implementation code from PixelOperation<T> to Vector4Converters	7 years ago
Anton Firszov	143bbaa369	benchmakrs	7 years ago
Anton Firszov	fd0e1bda6e	Fixed the benchmarks. All results make sense now! (cherry picked from commit 0d79d4eb58fa1002979f4157eb18c6291a164b06)	7 years ago
Anton Firszov	50867d84cb	disappointing benchmark for Rgba32 -> Bgra32	7 years ago
Anton Firszov	eaa5a9779c	Rgba32 <-> Argb32 <-> Bgra32	7 years ago
Anton Firszov	ff757fb733	bitwise conversion + benchmarks WIP	7 years ago
Anton Firszov	b8a4741da4	rename stuff in Benchmarks	7 years ago
Anton Firszov	9dbf074a99	Better benchmarks for ToVector4() proving that the current API is fine	7 years ago
Anton Firszov	813e743abc	drop slow Clamp() implementation	7 years ago
Anton Firszov	9b0ee6fb2a	minimize ceremonial overhead in BulkConvertByteToNormalizedFloat() and BulkConvertNormalizedFloatToByteClampOverflows()	7 years ago
Anton Firszov	81c57a812d	Bulk conversion of arbitrary-sized Span-s of scalars	7 years ago
Anton Firszov	3e92875a9a	fixed benchmarks and optimized implementation	7 years ago
Anton Firszov	63233c2516	benchmark conversion steps separately	7 years ago
Anton Firszov	4b846ed14e	benchmarks for TPixel -> Vector4 conversion	7 years ago
Anton Firszov	d90d6527ff	PixelConversion_ConvertToRgba32_AsPartOfCompositeOperation	7 years ago
Anton Firszov	f87436634a	common fixtures for PixelConversion* benchmarks	7 years ago
James Jackson-South	400a3cbe89	Refactor Vector4Utils and ConvolutionProcessors utilizing them.	7 years ago
Anton Firszov	85d7548049	rename namespace: SixLabors.ImageSharp.Memory -> SixLabors.Memory	8 years ago
James Jackson-South	df6f544341	Move common components	8 years ago
James Jackson-South	01ab0d16ec	Pool buffer	8 years ago
James Jackson-South	bccff8beb4	Increase Identify performance and reduce allocations	8 years ago
James Jackson-South	ef8610e835	Reduce additions and use Unsafe.As	8 years ago
Jason Nelson	01448179eb	Benchmark removed SpanUtility logic inplace	8 years ago
James Jackson-South	b6bafd0827	Move Rgba32 inline with other pixel formats	8 years ago
James Jackson-South	22ee2bb1a4	Replace Fast2DArray with DenseMatrix Much better and faster (comprable to 1D array)	8 years ago
Anton Firszov	b61574fdd0	clean up Buffer<T> API	8 years ago
Anton Firszov	17018555c5	hide Buffer<T>.Array, use IManagedByteBuffer when necessary	8 years ago
Lauri Kotilainen	a8b26a41ec	- Use Configuration.Default.MemoryManager in tests	8 years ago
Lauri Kotilainen	b91b2966e8	- Allocate Buffer2Ds from memory manager	8 years ago
Lauri Kotilainen	61b61709a9	- Allocate Buffers from memory manager	8 years ago
Lauri Kotilainen	c44c67a18a	- Make Buffer2D wrap Buffer	8 years ago
James Jackson-South	012d1ebddd	Update Colorful and add Pow benchmark	8 years ago
James Jackson-South	51e7f03393	Update tests	8 years ago
Anton Firszov	134fa595ed	JpegColorConverter.FromYCbCrSimdAvx2 works!	9 years ago
Anton Firszov	e0b808c8b6	speedup Block8x8F.RoundInplace()	9 years ago
JimBobSquarePants	7810b38826	Update all dependencies	9 years ago
Anton Firszov	8e56cc4140	ToString(), CopyTo(), ToArray() for Block8x8	9 years ago

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95 Commits (8b0eaf8dfdeb655767337be1237e85cad0c55dbc)