Cleanup image processing example script.
diff --git a/libs/rs/java/ImageProcessing/res/raw/threshold.rs b/libs/rs/java/ImageProcessing/res/raw/threshold.rs
index ad4dbd5..72f12355 100644
--- a/libs/rs/java/ImageProcessing/res/raw/threshold.rs
+++ b/libs/rs/java/ImageProcessing/res/raw/threshold.rs
@@ -5,38 +5,26 @@
char a;
};
-void filter(struct color_s *in, struct color_s *out, struct vecF32_3_s *luminanceVector) {
- struct vecF32_3_s pixel;
- pixel.x = (in->r & 0xFF) / 255.0f;
- pixel.y = (in->g & 0xFF) / 255.0f;
- pixel.z = (in->b & 0xFF) / 255.0f;
-
- float luminance = vec3Dot(luminanceVector, &pixel);
- luminance = maxf(0.0f, luminance - Params->threshold);
- vec3Scale(&pixel, signf(luminance));
-
- out->a = in->a;
- out->r = pixel.x * 255.0f;
- out->g = pixel.y * 255.0f;
- out->b = pixel.z * 255.0f;
-}
-
void main() {
int t = uptimeMillis();
struct color_s *in = (struct color_s *) InPixel;
struct color_s *out = (struct color_s *) OutPixel;
- struct vecF32_3_s luminanceVector;
- luminanceVector.x = 0.2125f;
- luminanceVector.y = 0.7154f;
- luminanceVector.z = 0.0721f;
-
int count = Params->inWidth * Params->inHeight;
int i;
+ float threshold = (Params->threshold * 255.f);
for (i = 0; i < count; i++) {
- filter(in, out, &luminanceVector);
+ float luminance = 0.2125f * in->r +
+ 0.7154f * in->g +
+ 0.0721f * in->b;
+ luminance = maxf(0.0f, luminance - threshold);
+ vec3Scale(&pixel, luminance > 0);
+ out->a = in->a;
+ out->r = pixel.x;
+ out->g = pixel.y;
+ out->b = pixel.z;
in++;
out++;