private void ccw_Click(object sender, EventArgs e)
{
ImageData = Image.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
ImageData2 = Image2.LockBits(new Rectangle(0, 0, Image2.Width, Image2.Height), ImageLockMode.WriteOnly, PixelFormat.Format24bppRgb);
buffer = new byte[ImageData.Stride * Image.Height];
buffer2 = new byte[ImageData2.Stride * Image2.Height];
pointer = ImageData.Scan0;
pointer2 = ImageData2.Scan0;
Marshal.Copy(pointer, buffer, 0, buffer.Length);
for (int y = 0, xx = 0; y < Image.Height; y++, xx += 3)
{
for (int x = 0, yy = Image2.Height - 1; x < Image.Width * 3; x += 3, yy--)
{
location = x + y * ImageData.Stride;
location2 = xx + yy * ImageData2.Stride;
buffer2[location2] = buffer[location];
buffer2[location2 + 1] = buffer[location + 1];
buffer2[location2 + 2] = buffer[location + 2];
}
}
Marshal.Copy(buffer2, 0, pointer2, buffer.Length);
Image.UnlockBits(ImageData);
Image2.UnlockBits(ImageData2);
pictureBox1.Image = Image2;
}
/* Converting The Image file:
* 1-Lock the Image Bits in the memory (PixelFormat.Format24bppRgb means that the program is going to lock only red , green and blue without including the alpha channel)
* 2-initializing the buffer array it's going to have all the image data (the image have height and width which leads to total pixel count = height * width and each pixel have r,g,b so the array length = height*width*3)
* 3-set the pointer to the location of the red value of the first pixel of the image
* 4-copy the Image Data to the Buffer Array
* 5-Loop through each pixel and make the loop step = 3 (i+=3)
* 6-apply the window on the current pixel
* 7-sum all pixels in the window and divide them by their count
* 8-assign the channels total values to output array once the you finished looping through the window
* 9-unlock the image bits
*/
private void convertbtn_Click(object sender, EventArgs e)
{
ImageData = Image.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
ImageData2 = Image2.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.WriteOnly, PixelFormat.Format24bppRgb);
buffer = new byte[ImageData.Stride * Image.Height];
buffer2 = new byte[ImageData.Stride * Image.Height];
pointer = ImageData.Scan0;
pointer2 = ImageData2.Scan0;
Marshal.Copy(pointer, buffer, 0, buffer.Length);
glid = (int)numsmooth.Value;
for (int y = 0; y < Image.Height; y++) //Same idea you need to watch sharp by c# video first
{
for (int x = 0; x < Image.Width * 3; x += 3)
{
r = g = b = count = 0; //reset the channels values
location = x + y * ImageData.Stride; //to get the location of any pixel >> location = x + y * Stride
for (int yy = -glid, yyy = 0; yy <= glid; yy++, yyy++)
{
if (y + yy >= 0 && y + yy < Image.Height) //to prevent crossing the bounds of the array
{
for (int xx = -glid * 3, xxx = 0; xx <= glid * 3; xx += 3, xxx++)
{
if (x + xx >= 0 && x + xx <= Image.Width * 3 - 3) //to prevent crossing the bounds of the array
{
location2 = x + xx + (yy + y) * ImageData.Stride; //to get the location of any pixel >> location = x + y * Stride
b += buffer[location2];
g += buffer[location2 + 1];
r += buffer[location2 + 2];
count++;
}
}
}
}
b = b / count;
g = g / count;
r = r / count;
if (b > 255)
{
b = 255;
}
if (g > 255)
{
g = 255;
}
if (r > 255)
{
r = 255;
}
buffer2[location] = (byte)b;
buffer2[location + 1] = (byte)g;
buffer2[location + 2] = (byte)r;
}
}
Marshal.Copy(buffer2, 0, pointer2, buffer.Length);
Image.UnlockBits(ImageData);
Image2.UnlockBits(ImageData2);
pictureBox1.Image = Image2;
}
/* Converting The Image file:
* 1-Lock the Image Bits in the memory (PixelFormat.Format24bppRgb means that the program is going to lock only red , green and blue without including the alpha channel)
* 2-initializing the buffer array it's going to have all the image data (the image have height and width which leads to total pixel count = height * width and each pixel have r,g,b so the array length = height*width*3)
* 3-set the pointer to the location of the blue value of the first pixel of the image
* 4-copy the Image Data to the Buffer Array
* 5-Loop through each pixel and make the loop step = 3 (i+=3)
* 6-assigin each channel value to it's corresponding variable
* 7-check for current pixel's channel values to find the biggest value that would be the brightness of the pixel (brightness1)
* 8-check for previous pixel's channel values to find the biggest value that would be the brightness of the pixel (brightness2)
* 9-subtract brightness1 and brightness2 and assigin the value to output array
* 8-copy back the image Data2 from buffer to Image2 using the same pointer location
* 9-unlock the image bits
*/
private void button4_Click(object sender, EventArgs e)
{
ImageData = Image.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
ImageData2 = Image2.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.WriteOnly, PixelFormat.Format24bppRgb);
buffer = new byte[ImageData.Stride * Image.Height];
buffer2 = new byte[ImageData.Stride * Image.Height];
pointer = ImageData.Scan0;
pointer2 = ImageData2.Scan0;
Marshal.Copy(pointer, buffer, 0, buffer.Length);
for (int i = 0; i < Image.Width * Image.Height * 3; i += 3)
{
if (i != 0)
{
b = buffer[i];
g = buffer[i + 1];
r = buffer[i + 2];
if (b != g | b != r | g != r)
{
brightness1 = Math.Max(Math.Max(r, g), b);
}
else
{
brightness1 = b;
}
b = buffer[i - 3];
g = buffer[i - 2];
r = buffer[i - 1];
if (b != g | b != r | g != r)
{
brightness2 = Math.Max(Math.Max(r, g), b);
}
else
{
brightness2 = b;
}
sub = (byte)Math.Abs(brightness1 - brightness2);
buffer2[i] = (byte)sub;
buffer2[i + 1] = (byte)sub;
buffer2[i + 2] = (byte)sub;
}
else
{
buffer2[i] = buffer[i];
buffer2[i + 1] = buffer[i + 1];
buffer2[i + 2] = buffer[i + 2];
}
}
Marshal.Copy(buffer2, 0, pointer2, buffer.Length);
Image.UnlockBits(ImageData);
Image2.UnlockBits(ImageData2);
pictureBox2.Image = Image2;
}
/* Converting The Image file:
* 1-Lock the Image Bits in the memory (PixelFormat.Format24bppRgb means that the program is going to lock only red , green and blue without including the alpha channel)
* 2-initializing the buffer array it's going to have all the image data (the image have height and width which leads to total pixel count = height * width and each pixel have r,g,b so the array length = height*width*3)
* 3-set the pointer to the location of the red value of the first pixel of the image
* 4-copy the Image Data to the Buffer Array
* 5-Loop through each pixel and make the loop step = 3 (i+=3)
* 6-apply the window on the current pixel
* 7-multiply each pixel in the window to each corresponding weight
* 8-assign the channels total values to output array once the you finished looping through the window
* 9-unlock the image bits
*/
private void convertbtn_Click(object sender, EventArgs e)
{
ImageData = Image.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
ImageData2 = Image2.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.WriteOnly, PixelFormat.Format24bppRgb);
buffer = new byte[ImageData.Stride * Image.Height];
buffer2 = new byte[ImageData.Stride * Image.Height];
pointer = ImageData.Scan0;
pointer2 = ImageData2.Scan0;
Marshal.Copy(pointer, buffer, 0, buffer.Length);
for (int y = 0; y < Image.Height; y++)
{
for (int x = 0; x < Image.Width * 3; x += 3)
{
r_x = g_x = b_x = 0; //reset the gradients in x-direcion values
r_y = g_y = b_y = 0; //reset the gradients in y-direction values
location = x + y * ImageData.Stride; //to get the location of any pixel >> location = x + y * Stride
for (int yy = -(int)Math.Floor(weights_y.GetLength(0) / 2.0d), yyy = 0; yy <= (int)Math.Floor(weights_y.GetLength(0) / 2.0d); yy++, yyy++)
{
if (y + yy >= 0 && y + yy < Image.Height) //to prevent crossing the bounds of the array
{
for (int xx = -(int)Math.Floor(weights_x.GetLength(1) / 2.0d) * 3, xxx = 0; xx <= (int)Math.Floor(weights_x.GetLength(1) / 2.0d) * 3; xx += 3, xxx++)
{
if (x + xx >= 0 && x + xx <= Image.Width * 3 - 3) //to prevent crossing the bounds of the array
{
location2 = x + xx + (yy + y) * ImageData.Stride; //to get the location of any pixel >> location = x + y * Stride
weight_x = weights_x[yyy, xxx];
weight_y = weights_y[yyy, xxx];
//applying the same weight to all channels
b_x += buffer[location2] * weight_x;
g_x += buffer[location2 + 1] * weight_x; //G_X
r_x += buffer[location2 + 2] * weight_x;
b_y += buffer[location2] * weight_y;
g_y += buffer[location2 + 1] * weight_y;//G_Y
r_y += buffer[location2 + 2] * weight_y;
}
}
}
}
//getting the magnitude for each channel
b = (int)Math.Sqrt(Math.Pow(b_x, 2) + Math.Pow(b_y, 2));
g = (int)Math.Sqrt(Math.Pow(g_x, 2) + Math.Pow(g_y, 2));//G
r = (int)Math.Sqrt(Math.Pow(r_x, 2) + Math.Pow(r_y, 2));
if (b > 255)
{
b = 255;
}
if (g > 255)
{
g = 255;
}
if (r > 255)
{
r = 255;
}
//getting grayscale value
grayscale = (b + g + r) / 3;
//thresholding to clean up the background
//if (grayscale < 80) grayscale = 0;
buffer2[location] = (byte)grayscale;
buffer2[location + 1] = (byte)grayscale;
buffer2[location + 2] = (byte)grayscale;
//thresholding to clean up the background
//if (b < 100) b = 0;
//if (g < 100) g = 0;
//if (r < 100) r = 0;
//buffer2[location] = (byte)b;
//buffer2[location + 1] = (byte)g;
//buffer2[location + 2] = (byte)r;
}
}
Marshal.Copy(buffer2, 0, pointer2, buffer.Length);
Image.UnlockBits(ImageData);
Image2.UnlockBits(ImageData2);
pictureBox1.Image = Image2;
}
/* Converting The Image file:
* 1-Lock the Image Bits in the memory (PixelFormat.Format24bppRgb means that the program is going to lock only red , green and blue without including the alpha channel)
* 2-initializing the buffer array it's going to have all the image data (the image have height and width which leads to total pixel count = height * width and each pixel have r,g,b so the array length = height*width*3)
* 3-set the pointer to the location of the red value of the first pixel of the image
* 4-copy the Image Data to the Buffer Array
* 5-Loop through each pixel and make the loop step = 3 (i+=3)
* 6-apply the window on the current pixel
* 7-multiply each pixel in the window to each corresponding weight then add the value to it's corresponding channel
* 8-assign the channels total values to output array once the you finished looping through the window
* 9-unlock the image bits
*/
private void button3_Click(object sender, EventArgs e)
{
ImageData = Image.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
ImageData2 = Image2.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.WriteOnly, PixelFormat.Format24bppRgb);
buffer = new byte[ImageData.Stride * Image.Height];
buffer2 = new byte[ImageData.Stride * Image.Height];
pointer = ImageData.Scan0;
pointer2 = ImageData2.Scan0;
Marshal.Copy(pointer, buffer, 0, buffer.Length);
for (int y = 0; y < Image.Height; y++)
{
for (int x = 0; x < Image.Width * 3; x += 3)
{
r = g = b = 0; //reset the channels values
location = x + y * ImageData.Stride; //to get the location of any pixel >> location = x + y * Stride
for (int yy = -(int)Math.Floor(weights.GetLength(0) / 2.0d), yyy = 0; yy <= (int)Math.Floor(weights.GetLength(0) / 2.0d); yy++, yyy++)
{
if (y + yy >= 0 && y + yy < Image.Height) //to prevent crossing the bounds of the array
{
for (int xx = -(int)Math.Floor(weights.GetLength(1) / 2.0d) * 3, xxx = 0; xx <= (int)Math.Floor(weights.GetLength(1) / 2.0d) * 3; xx += 3, xxx++)
{
if (x + xx >= 0 && x + xx <= Image.Width * 3 - 3) //to prevent crossing the bounds of the array
{
location2 = x + xx + (yy + y) * ImageData.Stride; //to get the location of any pixel >> location = x + y * Stride
weight = weights[yyy, xxx];
//applying the same weight to all channels
b += buffer[location2] * weight;
g += buffer[location2 + 1] * weight;
r += buffer[location2 + 2] * weight;
}
}
}
}
if (b > 255)
{
b = 255;
}
else if (b < 0)
{
b = 0;
}
if (g > 255)
{
g = 255;
}
else if (g < 0)
{
g = 0;
}
if (r > 255)
{
r = 255;
}
else if (r < 0)
{
r = 0;
}
buffer2[location] = (byte)b;
buffer2[location + 1] = (byte)g;
buffer2[location + 2] = (byte)r;
}
}
Marshal.Copy(buffer2, 0, pointer2, buffer.Length);
Image.UnlockBits(ImageData);
Image2.UnlockBits(ImageData2);
pictureBox2.Image = Image2;
}
