How to get the RGB code of an entire image? The RGB code is to be displayed inside a textBox.in this form: RGB(148,149,155). If I change the brightness inside the image, the RGB code should also change inside. i cannot find RGB value of image and cannot see it in textbox
What I have tried:
private void textBox3_TextChanged(object sender, EventArgs e)
{
GetPixels();
}
private Color[,] GetPixels()
{
Bitmap bmp = varas.ptvalrgb;
Color[,] results = new Color[bmp.Width, bmp.Height];
for (int y = 0; y < bmp.Height; y++)
{
for (int x = 0; x < bmp.Width; x++)
{
results[x, y] = bmp.GetPixel(x, y);
}
}
return results;
}
private void trackBar1_Scroll(object sender, EventArgs e)
{
trackBar1.Value.ToString();
float value = trackBar1.Value * 0.01f;
float[][] colorMatrixElements = {
new float[]
{
1,
0,
0,
0,
0
},
new float[]
{
0,
1,
0,
0,
0
},
new float[]
{
0,
0,
1,
0,
0
},
new float[]
{
0,
0,
0,
1,
0
},
new float[]
{
value,
value,
value,
0,
1
}
};
ColorMatrix colorMatrix = new ColorMatrix(colorMatrixElements);
ImageAttributes imageAttributes = new ImageAttributes();
imageAttributes.SetColorMatrix(colorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
Image _img = varas.ptval;
Graphics _g = default(Graphics);
Bitmap bm_dest = new Bitmap(Convert.ToInt32(_img.Width), Convert.ToInt32(_img.Height));
_g = Graphics.FromImage(bm_dest);
_g.DrawImage(_img, new Rectangle(0, 0, bm_dest.Width + 1, bm_dest.Height + 1), 0, 0, bm_dest.Width + 1, bm_dest.Height + 1, GraphicsUnit.Pixel, imageAttributes);
LevelPicBox.Image = bm_dest;
textBox1.Text = trackBar1.Value.ToString();
}