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Optimize BIC (minor)

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This commit is contained in:
Nikolaj Olsson 2020-05-23 08:20:50 +02:00
parent a848d85b7d
commit e3cd2ac9ef
2 changed files with 21 additions and 46 deletions
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58
src/Logic/Ocr/Binary/BinaryOcrBitmap.cs
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@ -53,7 +53,7 @@ namespace Nikse.SubtitleEdit.Logic.Ocr.Binary
Height = height;
_colors = new byte[Width * Height];
Hash = MurMurHash3.Hash(_colors);
CalcuateNumberOfColoredPixels();
NumberOfColoredPixels = 0;
}
public BinaryOcrBitmap(Stream stream)
@ -113,27 +113,25 @@ namespace Nikse.SubtitleEdit.Logic.Ocr.Binary
Width = nbmp.Width;
Height = nbmp.Height;
_colors = new byte[Width * Height];
var numberOfColoredPixels = 0;
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
SetPixelViaAlpha(x, y, nbmp.GetAlpha(x, y));
var alpha = nbmp.GetAlpha(x, y);
if (alpha < 100)
{
_colors[Width * y + x] = 0;
}
else
{
_colors[Width * y + x] = 1;
numberOfColoredPixels++;
}
}
}
NumberOfColoredPixels = numberOfColoredPixels;
Hash = MurMurHash3.Hash(_colors);
CalcuateNumberOfColoredPixels();
}
private void CalcuateNumberOfColoredPixels()
{
NumberOfColoredPixels = 0;
for (int i = 0; i < _colors.Length; i++)
{
if (_colors[i] > 0)
{
NumberOfColoredPixels++;
}
}
}
public bool AreColorsEqual(BinaryOcrBitmap other)
@ -216,34 +214,10 @@ namespace Nikse.SubtitleEdit.Logic.Ocr.Binary
return _colors[index];
}
public void SetPixel(int x, int y, int c)
{
_colors[Width * y + x] = (byte)c;
}
public void SetPixel(int x, int y, Color c)
{
if (c.A < 100)
{
_colors[Width * y + x] = 0;
}
else
public void SetPixel(int x, int y)
{
_colors[Width * y + x] = 1;
}
}
public void SetPixelViaAlpha(int x, int y, int alpha)
{
if (alpha < 100)
{
_colors[Width * y + x] = 0;
}
else
{
_colors[Width * y + x] = 1;
}
}
/// <summary>
/// Copies a rectangle from the bitmap to a new bitmap
@ -322,13 +296,13 @@ namespace Nikse.SubtitleEdit.Logic.Ocr.Binary
int c = bob.GetPixel(x, y);
if (c > 0)
{
nbmp.SetPixel(bob.X - minX + x, bob.Y - minY + y, 1);
nbmp.SetPixel(bob.X - minX + x, bob.Y - minY + y);
}
}
}
}
return nbmp.ToOldBitmap(color); // Resursive
return nbmp.ToOldBitmap(color); // Recursive
}
else
{

7
src/Logic/Ocr/Binary/BinaryOcrDb.cs
View File

@ -1,9 +1,9 @@
using System;
using Nikse.SubtitleEdit.Core;
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using Nikse.SubtitleEdit.Core;
namespace Nikse.SubtitleEdit.Logic.Ocr.Binary
{
@ -135,10 +135,11 @@ namespace Nikse.SubtitleEdit.Logic.Ocr.Binary
public int FindExactMatch(BinaryOcrBitmap bob)
{
var bobHash = bob.Hash;
for (int i = 0; i < CompareImages.Count; i++)
{
var b = CompareImages[i];
if (bob.Hash == b.Hash && bob.Width == b.Width && bob.Height == b.Height && bob.NumberOfColoredPixels == b.NumberOfColoredPixels)
if (bobHash == b.Hash && bob.Width == b.Width && bob.Height == b.Height && bob.NumberOfColoredPixels == b.NumberOfColoredPixels)
{
if (AllowEqual(b, bob))
{