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Added support for Epub, Aozora e-book formats (Experimental feature)
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Improve the processing performance of the upper and lower pages when viewing in GenerateView.

NovelTool is a novel/ebook reading and conversion tool, written in .Net Framework 4.8, which can convert ebooks into image files in another font size.
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@avan06
avan06 committed Jul 17, 2022
1 parent 69fbcb2 commit e5fb000
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Showing 12 changed files with 1,615 additions and 1,020 deletions.
70 changes: 55 additions & 15 deletions NovelTool/BitmapTool.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -187,6 +187,11 @@ public enum Filter
Sharpen3x3Type4,
Sharpen5x5Type1,
Sharpen5x5Type2,
Smooth3x3Type1,
Smooth3x3Type2,
Smooth3x3Type3,
Smooth5x5Type1,
Smooth5x5Type2,
IntenseSharpen,
Laplacian3x3Type1,
Laplacian5x5Type1,
Expand All @@ -203,6 +208,7 @@ public enum Filter
GradientSouth,
GradientWest,
}

public static readonly Dictionary<Filter, (double[,] filterMatrix, double factor, int bias)> Filters = new Dictionary<Filter, (double[,] filterMatrix, double factor, int bias)>()
{
[Filter.Sharpen3x3Type1] = (new double[,] {
Expand All @@ -214,13 +220,13 @@ public enum Filter
{ -1, 5, -1, },
{ 0, -1, 0, }, }, 1.0, 0),
[Filter.Sharpen3x3Type3] = (new double[,] {
{ 0, -0.25, 0 },
{ 0, -0.25, 0, },
{-0.25, 2, -0.25 },
{ 0, -0.25, 0 }, }, 1.0, 0),
{ 0, -0.25, 0, }, }, 1.0, 0),
[Filter.Sharpen3x3Type4] = (new double[,] {
{ -0.25, -0.25, -0.25 },
{ -0.25, 3, -0.25 },
{ -0.25, -0.25, -0.25 }, }, 1.0, 0),
{ -0.25, -0.25, -0.25, },
{ -0.25, 3, -0.25, },
{ -0.25, -0.25, -0.25, }, }, 1.0, 0),
[Filter.Sharpen3x3Factor] = (new double[,] {
{ 0, -2, 0, },
{ -2, 11, -2, },
Expand All @@ -235,8 +241,32 @@ public enum Filter
{ -1, -3, -4, -3, -1, },
{ -3, 0, 6, 0, -3, },
{ -4, 6, 21, 6, -4, },
{ -3, 0, 6, 0, -3 },
{ -1, -3, -4, -3, -1 }, }, 1.0, 0),
{ -3, 0, 6, 0, -3, },
{ -1, -3, -4, -3, -1, }, }, 1.0, 0),
[Filter.Smooth3x3Type1] = (new double[,] {
{ 1, 1, 1, },
{ 1, 10, 1, },
{ 1, 1, 1, }, }, 1.0 / 15, 0),
[Filter.Smooth3x3Type2] = (new double[,] {
{ 1, 2, 1, },
{ 2, 4, 2, },
{ 1, 2, 1, }, }, 1.0 / 11, 0),
[Filter.Smooth3x3Type3] = (new double[,] {
{ 1, 1, 1, },
{ 1, 5, 1, },
{ 1, 1, 1, }, }, 1.0 / 9, 0),
[Filter.Smooth5x5Type1] = (new double[,] {
{ 1, 4, 7, 4, 1, },
{ 4, 16, 26, 16, 4, },
{ 7, 26, 41, 26, 7, },
{ 4, 16, 26, 16, 4, },
{ 1, 4, 7, 4, 1, }, }, 1.0 / 180, 0),
[Filter.Smooth5x5Type2] = (new double[,] {
{ 1, 1, 1, 1, 1, },
{ 1, 5, 5, 5, 1, },
{ 1, 5, 44, 5, 1, },
{ 1, 5, 5, 5, 1, },
{ 1, 1, 1, 1, 1, }, }, 1.0 / 72, 0),
[Filter.IntenseSharpen] = (new double[,] {
{ 1, 1, 1, },
{ 1, -7, 1, },
Expand Down Expand Up @@ -307,13 +337,15 @@ public enum Filter
{ 1, 2, 1 },
{ 0, 0, 0 },
{ -1, -2, -1 }, }, 1.0, 0),
};
};

public enum FilterXY
{
Sobel3x3,
Prewitt3x3,
Kirsch3x3,
}

public static readonly Dictionary<FilterXY, (double[,] xFilterMatrix, double[,] yFilterMatrix, double factor, int bias)> FilterXYs = new Dictionary<FilterXY, (double[,] xFilterMatrix, double[,] yFilterMatrix, double factor, int bias)>()
{
[FilterXY.Sobel3x3] = (
Expand Down Expand Up @@ -344,6 +376,7 @@ public enum FilterXY
{ 5, 0, -3, },
{ 5, -3, -3, }, }, 1.0, 0),
};

public static Bitmap ConvolutionFilter(Bitmap sourceBitmap, double[,] filterMatrix, double factor = 1, int bias = 0, bool grayscale = false)
{
if (sourceBitmap == null) return null;
Expand Down Expand Up @@ -377,15 +410,10 @@ public static Bitmap ConvolutionFilter(Bitmap sourceBitmap, double[,] filterMatr
{
for (int offsetX = filterOffset; offsetX < sourceBitmap.Width - filterOffset; offsetX++)
{
blue = 0;
green = 0;
red = 0;
blue = green = red = 0;
byteOffset = offsetY * sourceData.Stride + offsetX * 4;
var c = Color.FromArgb(pixelBuffer[byteOffset + 3], pixelBuffer[byteOffset + 2], pixelBuffer[byteOffset + 1], pixelBuffer[byteOffset]);
if (c == Color.White)
{
Console.WriteLine(c);
}
if (c == Color.White) { } //Console.WriteLine(c);
else
{
for (int filterY = -filterOffset; filterY <= filterOffset; filterY++)
Expand Down Expand Up @@ -429,6 +457,7 @@ public static Bitmap ConvolutionFilter(Bitmap sourceBitmap, double[,] filterMatr

return resultBitmap;
}

public static Bitmap ConvolutionFilter(Bitmap sourceBitmap, double[,] xFilterMatrix, double[,] yFilterMatrix, double factor = 1, int bias = 0, bool grayscale = false)
{
if (sourceBitmap == null) return null;
Expand Down Expand Up @@ -506,5 +535,16 @@ public static Bitmap ConvolutionFilter(Bitmap sourceBitmap, double[,] xFilterMat
resultBitmap.UnlockBits(resultData);
return resultBitmap;
}

public static Bitmap ConvolutionXYFilter(Bitmap sourceBitmap, double[,] xFilterMatrix, double[,] yFilterMatrix, double factor, int bias)
{
if (xFilterMatrix == null) return sourceBitmap;

sourceBitmap = yFilterMatrix == null ?
BitmapFilter.ConvolutionFilter(sourceBitmap, xFilterMatrix, factor, bias) :
BitmapFilter.ConvolutionFilter(sourceBitmap, xFilterMatrix, yFilterMatrix, factor, bias);
//sourceBitmap.MakeTransparent(Color.Transparent);
return sourceBitmap;
}
}
}
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