tsai
/
ImageSharp
mirror of https://github.com/SixLabors/ImageSharp
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

Fix a parallelize ReplaceColor 

Former-commit-id: becd4521be8fc9d4b15cb2e715acd81a165b81dd
Former-commit-id: d420f50922c6d419e152003d2abdbf9ef12407cc
af/merge-core
James South 11 years ago
parent
e1af12053b
commit
76533da1e9
1 changed files with 34 additions and 27 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 61
      src/ImageProcessor/Processors/ReplaceColor.cs

61
src/ImageProcessor/Processors/ReplaceColor.cs
View File

@ -13,6 +13,8 @@ namespace ImageProcessor.Processors
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Threading.Tasks;
using ImageProcessor.Common.Exceptions;
using ImageProcessor.Common.Extensions;
using ImageProcessor.Imaging;
@ -72,7 +74,7 @@ namespace ImageProcessor.Processors
byte originalB = original.B;
Color replacement = parameters.Item2;
byte replacementR = original.R;
byte replacementR = replacement.R;
byte replacementG = replacement.G;
byte replacementB = replacement.B;
byte replacementA = replacement.A;
@ -85,39 +87,44 @@ namespace ImageProcessor.Processors
using (FastBitmap fastBitmap = new FastBitmap(newImage))
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
Parallel.For(
0,
height,
y =>
{
// Get the pixel color.
Color currentColor = fastBitmap.GetPixel(x, y);
byte currentR = currentColor.R;
byte currentG = currentColor.B;
byte currentB = currentColor.B;
byte currentA = currentColor.A;
// Test whether it is in the expected range.
if (currentR <= originalR + fuzziness && currentR >= originalR - fuzziness)
for (int x = 0; x < width; x++)
{
if (currentG <= originalG + fuzziness && currentG >= originalG - fuzziness)
// Get the pixel color.
// ReSharper disable once AccessToDisposedClosure
Color currentColor = fastBitmap.GetPixel(x, y);
byte currentR = currentColor.R;
byte currentG = currentColor.G;
byte currentB = currentColor.B;
byte currentA = currentColor.A;
// Test whether it is in the expected range.
if (currentR <= originalR + fuzziness && currentR >= originalR - fuzziness)
{
if (currentB <= originalB + fuzziness && currentB >= originalB - fuzziness)
if (currentG <= originalG + fuzziness && currentG >= originalG - fuzziness)
{
// Ensure the values are within an acceptable byte range
// and set the new value.
byte r = (originalR - currentR + replacementR).ToByte();
byte g = (originalG - currentG + replacementG).ToByte();
byte b = (originalB - currentB + replacementB).ToByte();
// Allow replacement with transparent color.
byte a = currentA != replacementA ? replacementA : currentA;
fastBitmap.SetPixel(x, y, Color.FromArgb(a, r, g, b));
if (currentB <= originalB + fuzziness && currentB >= originalB - fuzziness)
{
// Ensure the values are within an acceptable byte range
// and set the new value.
byte r = (originalR - currentR + replacementR).ToByte();
byte g = (originalG - currentG + replacementG).ToByte();
byte b = (originalB - currentB + replacementB).ToByte();
// Allow replacement with transparent color.
byte a = currentA != replacementA ? replacementA : currentA;
// ReSharper disable once AccessToDisposedClosure
fastBitmap.SetPixel(x, y, Color.FromArgb(a, r, g, b));
}
}
}
}
}
}
});
}
image.Dispose();

Write Preview
Loading…
Cancel
Save