diff --git a/Image-Filtering/Convolution-Filter/Image.glsl b/Image-Filtering/Convolution-Filter/Image.glsl
new file mode 100644
index 0000000..bc503e0
--- /dev/null
+++ b/Image-Filtering/Convolution-Filter/Image.glsl
@@ -0,0 +1,137 @@
+
+vec3 conv(in sampler2D tex, in vec2 uv, in mat3 ker);
+
+vec3 edges(in sampler2D tex, in vec2 uv)
+{
+    mat3 ker = mat3(
+        vec3(-1, -2, -1),
+        vec3(-2, 12, -2),
+        vec3(-1, -2, -1)
+    );
+    
+    return conv(tex, uv, ker)+.5;
+}
+
+// can be used to remove high frequency noise
+vec3 median(in sampler2D tex, in vec2 uv)
+{
+    float k = 1./8.;
+    mat3 ker = mat3(
+        vec3(k, k, k),
+        vec3(k, 0, k),
+        vec3(k, k, k)
+    );
+    
+    return conv(tex, uv, ker);
+}
+
+// sharpen filter including diagonals
+vec3 laplace(in sampler2D tex, in vec2 uv, in float strength)
+{
+    float k = -strength;
+    mat3 ker = mat3(
+        vec3(k, k, k),
+        vec3(k, 8.*strength+1., k),
+        vec3(k, k, k)
+    );
+    
+    return conv(tex, uv, ker);
+}
+
+// subtracts high frequency edges from the source image
+vec3 unsharp(in sampler2D tex, in vec2 uv)
+{
+    float k = 1./9.;
+    mat3 ker = mat3(
+        vec3(k, k, k),
+        vec3(k, k, k),
+        vec3(k, k, k)
+    );
+    
+    vec3 blurred = conv(tex, uv, ker);
+    
+    return texture(iChannel0, uv).rgb - (texture(iChannel0, uv).rgb - blurred);
+}
+
+vec3 emboss(in sampler2D tex, in vec2 uv, in float theta)
+{
+    // init kernel
+    mat3 ker = mat3(
+        vec3(0),
+        vec3(0),
+        vec3(0)
+    );
+    
+    // direction of edge detection
+    vec2 dir = vec2(sin(theta), cos(theta));
+    
+    // fill kernel with values
+    for (int x = -1; x < 2; x++)
+    for (int y = -1; y < 2; y++)
+        ker[x+1][y+1] = dot(dir, vec2(x,y));
+    
+    return conv(tex, uv, ker)+.5;
+}
+
+vec3 sobelFeldmann(in sampler2D tex, in vec2 uv)
+{
+    // init horizontal kernel
+    mat3 ker0 = mat3(
+        vec3(1, 0, -1),
+        vec3(2, 0, -2),
+        vec3(1, 0, -1)
+    );
+    
+    // init vertical kernel
+    mat3 ker1 = mat3(
+        vec3(1, 2, 1),
+        vec3(0, 0, 0),
+        vec3(-1, -2, -1)
+    );
+    
+    vec3 c0 = conv(tex, uv, ker0);// convolute horizontal
+    vec3 c1 = conv(tex, uv, ker1);// convolute vertical
+    
+    // pythagoras
+    return sqrt(c0*c0+c1*c1);
+}
+
+vec3 conv(in sampler2D tex, in vec2 uv, in mat3 ker)
+{
+    vec3 sum = vec3(0);
+    
+    for (int x = 0; x < 3; x++)
+    for (int y = 0; y < 3; y++)
+    {
+        vec2 off = (vec2(x,y)*.3333-.5)/iResolution.xy;
+        sum += texture(tex, uv + off).rgb * ker[x][y];
+    }
+    
+    return sum;
+}
+
+bool sector(in vec2 uv, in vec2 hor, in vec2 ver)
+{
+    vec2 delta = 1./vec2(hor[1], ver[1]);
+
+    vec2 low = delta * vec2(hor[0], ver[0]);
+    vec2 high = low + delta;
+    
+    return low.x < uv.x && low.y < uv.y && high.x > uv.x && high.y > uv.y;
+}
+
+void mainImage( out vec4 fragColor, in vec2 fragCoord )
+{
+    vec2 uv = fragCoord/iResolution.xy;
+
+    vec3 col = texture(iChannel0, uv).rgb;
+    
+    if (sector(uv, vec2(0,4), vec2(1,2))) col = unsharp(iChannel0, uv);
+    if (sector(uv, vec2(1,4), vec2(0,2))) col = laplace(iChannel0, uv, 2.0);
+    if (sector(uv, vec2(1,2), vec2(0,2))) col = emboss(iChannel0, uv, iTime);
+    if (sector(uv, vec2(1,2), vec2(1,2))) col = sobelFeldmann(iChannel0, uv);
+    if (sector(uv, vec2(1,4), vec2(1,2))) col = median(iChannel0, uv);
+    if (sector(uv, vec2(1,4), vec2(1,2))) col = edges(iChannel0, uv);
+    
+    fragColor = vec4(col,1.0);
+}
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diff --git a/Image-Filtering/Convolution-Filter/README.md b/Image-Filtering/Convolution-Filter/README.md
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+# Convolution-Filter
+![overview.png](https://git.teridax.de/teridax/Shadertoy-Shaders/raw/branch/main/Image-Filtering/Convolution-Filter/overview.png)
+
+Convolution filter are filters that take a kernel and sum up every pixel and multiply that pixel with the corresponding element of the kernel.
+Note that blur filter are technically convolution filters as well despite them not being listed here.
+
+This file contains example implemntations of the following convolution filters:
+- Median Filter
+- Unsharp mask
+- Laplace (sharpen)
+- Emboss (omni-directional)
+- Sobel-Feldmann
+- Edge Detection
\ No newline at end of file
diff --git a/Image-Filtering/Convolution-Filter/overview.png b/Image-Filtering/Convolution-Filter/overview.png
new file mode 100644
index 0000000..87c8e1a
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