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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Diagnostics; | ||
| using System.Drawing; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
|
|
||
| namespace SmartImage.Utilities | ||
| { | ||
| public static class ImageUtilities | ||
| { | ||
| //todo | ||
|
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| public static List<bool> GetHash(Bitmap bmpSource, int height) | ||
| { | ||
| List<bool> lResult = new List<bool>(); | ||
| //create new image with 16x16 pixel | ||
|
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| Bitmap bmpMin = new Bitmap(bmpSource, new Size(height, height)); | ||
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| for (int j = 0; j < bmpMin.Height; j++) { | ||
| for (int i = 0; i < bmpMin.Width; i++) { | ||
| //reduce colors to true / false | ||
| lResult.Add(bmpMin.GetPixel(i, j).GetBrightness() < 0.5f); | ||
| } | ||
| } | ||
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| //int equalElements = hash.Zip(hash1, (i, j) => i == j).Count(eq => eq); | ||
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| return lResult; | ||
| } | ||
|
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| public static List<bool> GetHash(string bmpSource, int height) | ||
| { | ||
| return GetHash((Bitmap) Image.FromFile(bmpSource), height); | ||
| } | ||
|
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| public static ulong Hash_d(string s, int size = 256) | ||
| { | ||
| //widthAndLength := uint(math.Ceil(math.Sqrt(float64(hashLength)/2.0)) + 1) | ||
| var wl = (int) (Math.Ceiling(Math.Sqrt(((float) size) / 2.0)) + 1); | ||
|
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| Debug.WriteLine($"{wl}"); | ||
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| Image im = Image.FromFile(s); | ||
| //new Bitmap(9, 8, PixelFormat.Format16bppGrayScale); | ||
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| Bitmap c = new Bitmap(im, new Size(wl + 1, wl)); | ||
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| ulong h = 0; | ||
|
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| // Loop through the images pixels to reset color. | ||
| for (int i = 0; i < c.Width; i++) { | ||
| for (int x = 0; x < c.Height; x++) { | ||
| Color oc = c.GetPixel(i, x); | ||
| int grayScale = (int) ((oc.R * 0.3) + (oc.G * 0.59) + (oc.B * 0.11)); | ||
| Color nc = Color.FromArgb(oc.A, grayScale, grayScale, grayScale); | ||
| c.SetPixel(i, x, nc); | ||
| } | ||
| } | ||
| //c = MakeGrayscale3(c); | ||
|
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| // int x, y; | ||
| // | ||
| // for (x = 0; x < c.Width; x++) | ||
| // { | ||
| // for (y = 0; y < c.Height; y++) | ||
| // { | ||
| // Color pixelColor = c.GetPixel(x, y); | ||
| // Color newColor = Color.FromArgb(pixelColor.R, 0, 0); | ||
| // c.SetPixel(x, y, newColor); // Now greyscale | ||
| // } | ||
| // } | ||
|
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| for (int j = 0; j < wl; j++) { | ||
| for (int k = 0; k < wl; k++) { | ||
| var b = (c.GetPixel(j, k).R > c.GetPixel(j + 1, k).R); | ||
| var bit = Convert.ToUInt64(b) << (j + k * 8); | ||
| h |= bit; | ||
| } | ||
| } | ||
|
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| return h; | ||
| } | ||
| } | ||
| } |