public myPicture doSharp(myPicture input)
{
Bitmap ret = new Bitmap(input.width, input.height);
for (int i = 0; i < input.width; ++i)
{
for (int j = 0; j < input.height; ++j)
{
int dx = (input.getGrayDegree(i - 1, j - 1) + 2 * input.getGrayDegree(i - 1, j) + input.getGrayDegree(i - 1, j + 1)) - (input.getGrayDegree(i + 1, j - 1) + 2 * input.getGrayDegree(i + 1, j) + input.getGrayDegree(i + 1, j + 1));
int dy = (input.getGrayDegree(i - 1, j + 1) + 2 * input.getGrayDegree(i, j + 1) + input.getGrayDegree(i + 1, j + 1)) - (input.getGrayDegree(i - 1, j - 1) + 2 * input.getGrayDegree(i, j - 1) + input.getGrayDegree(i + 1, j - 1));
if (dx < 0)
{
dx = -dx;
}
if (dy < 0)
{
dy = -dy;
}
int d = Math.Max(dx, dy);
if (d > 255)
{
d = 255;
}
ret.SetPixel(i, j, Color.FromArgb(d, d, d));
}
}
return(new myPicture(ret, input.path));
}
public myPicture doSmooth(myPicture input, matrix mat)
{
Bitmap ret = new Bitmap(input.width, input.height);
int r = mat.n / 2, s = mat.m / 2;
for (int i = 0; i < input.width; ++i)
{
for (int j = 0; j < input.height; ++j)
{
double tmp = 0;
for (int p = -r; p <= r; ++p)
{
for (int q = -s; q <= s; ++q)
{
tmp += 1.0 * input.getGrayDegree(i - p, j - q) * mat.a[p + r, q + s];
}
}
int val = (int)tmp;
if (val < 0)
{
val = 0;
}
if (val > 255)
{
val = 255;
}
ret.SetPixel(i, j, Color.FromArgb(val, val, val));
}
}
return(new myPicture(ret, input.path));
}
public myPicture doSharp(myPicture input)
{
Bitmap ret = new Bitmap(input.width, input.height);
for (int i = 0; i < input.width; ++i)
{
for (int j = 0; j < input.height; ++j)
{
int d1 = input.getGrayDegree(i, j) - input.getGrayDegree(i - 1, j - 1);
int d2 = input.getGrayDegree(i, j) - input.getGrayDegree(i + 1, j - 1);
if (d1 < 0)
{
d1 = -d1;
}
if (d2 < 0)
{
d2 = -d2;
}
int d = Math.Max(d1, d2);
ret.SetPixel(i, j, Color.FromArgb(d, d, d));
}
}
return(new myPicture(ret, input.path));
}
public myPicture doSharp(myPicture input)
{
Bitmap ret = new Bitmap(input.width, input.height);
for (int i = 0; i < input.width; ++i)
{
for (int j = 0; j < input.height; ++j)
{
int val1 = -5 * input.getGrayDegree(i - 1, j - 1) + 3 * input.getGrayDegree(i - 1, j) + 3 * input.getGrayDegree(i - 1, j + 1) - 5 * input.getGrayDegree(i, j - 1) + 3 * input.getGrayDegree(i, j + 1) - 5 * input.getGrayDegree(i + 1, j - 1) + 3 * input.getGrayDegree(i + 1, j) + 3 * input.getGrayDegree(i + 1, j + 1);
int val2 = +3 * input.getGrayDegree(i - 1, j - 1) + 3 * input.getGrayDegree(i - 1, j) + 3 * input.getGrayDegree(i - 1, j + 1) - 5 * input.getGrayDegree(i, j - 1) + 3 * input.getGrayDegree(i, j + 1) - 5 * input.getGrayDegree(i + 1, j - 1) - 5 * input.getGrayDegree(i + 1, j) + 3 * input.getGrayDegree(i + 1, j + 1);
int val3 = +3 * input.getGrayDegree(i - 1, j - 1) + 3 * input.getGrayDegree(i - 1, j) + 3 * input.getGrayDegree(i - 1, j + 1) + 3 * input.getGrayDegree(i, j - 1) + 3 * input.getGrayDegree(i, j + 1) - 5 * input.getGrayDegree(i + 1, j - 1) - 5 * input.getGrayDegree(i + 1, j) - 5 * input.getGrayDegree(i + 1, j + 1);
int val4 = +3 * input.getGrayDegree(i - 1, j - 1) + 3 * input.getGrayDegree(i - 1, j) + 3 * input.getGrayDegree(i - 1, j + 1) + 3 * input.getGrayDegree(i, j - 1) - 5 * input.getGrayDegree(i, j + 1) + 3 * input.getGrayDegree(i + 1, j - 1) - 5 * input.getGrayDegree(i + 1, j) - 5 * input.getGrayDegree(i + 1, j + 1);
int val5 = +3 * input.getGrayDegree(i - 1, j - 1) + 3 * input.getGrayDegree(i - 1, j) - 5 * input.getGrayDegree(i - 1, j + 1) + 3 * input.getGrayDegree(i, j - 1) - 5 * input.getGrayDegree(i, j + 1) + 3 * input.getGrayDegree(i + 1, j - 1) + 3 * input.getGrayDegree(i + 1, j) - 5 * input.getGrayDegree(i + 1, j + 1);
int val6 = +3 * input.getGrayDegree(i - 1, j - 1) - 5 * input.getGrayDegree(i - 1, j) - 5 * input.getGrayDegree(i - 1, j + 1) + 3 * input.getGrayDegree(i, j - 1) - 5 * input.getGrayDegree(i, j + 1) + 3 * input.getGrayDegree(i + 1, j - 1) + 3 * input.getGrayDegree(i + 1, j) + 3 * input.getGrayDegree(i + 1, j + 1);
int val7 = -5 * input.getGrayDegree(i - 1, j - 1) - 5 * input.getGrayDegree(i - 1, j) - 5 * input.getGrayDegree(i - 1, j + 1) + 3 * input.getGrayDegree(i, j - 1) + 3 * input.getGrayDegree(i, j + 1) + 3 * input.getGrayDegree(i + 1, j - 1) + 3 * input.getGrayDegree(i + 1, j) + 3 * input.getGrayDegree(i + 1, j + 1);
int val8 = -5 * input.getGrayDegree(i - 1, j - 1) - 5 * input.getGrayDegree(i - 1, j) + 3 * input.getGrayDegree(i - 1, j + 1) - 5 * input.getGrayDegree(i, j - 1) + 3 * input.getGrayDegree(i, j + 1) + 3 * input.getGrayDegree(i + 1, j - 1) + 3 * input.getGrayDegree(i + 1, j) + 3 * input.getGrayDegree(i + 1, j + 1);
int val = 0;
if (val1 < 0)
{
val1 = -val1;
}
if (val2 < 0)
{
val2 = -val2;
}
if (val3 < 0)
{
val3 = -val3;
}
if (val4 < 0)
{
val4 = -val4;
}
if (val5 < 0)
{
val5 = -val5;
}
if (val6 < 0)
{
val6 = -val6;
}
if (val7 < 0)
{
val7 = -val7;
}
if (val8 < 0)
{
val8 = -val8;
}
if (val1 > val)
{
val = val1;
}
if (val2 > val)
{
val = val2;
}
if (val3 > val)
{
val = val3;
}
if (val4 > val)
{
val = val4;
}
if (val5 > val)
{
val = val5;
}
if (val6 > val)
{
val = val6;
}
if (val7 > val)
{
val = val7;
}
if (val8 > val)
{
val = val8;
}
if (val > 255)
{
val = 255;
}
ret.SetPixel(i, j, Color.FromArgb(val, val, val));
}
}
return(new myPicture(ret, input.path));
}