new simple gamma correction OpenCL example featuring lenna.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/com/jogamp/opencl/demos/gamma/Gamma.cl b/src/com/jogamp/opencl/demos/gamma/Gamma.cl
new file mode 100644
index 0000000..69b0618
--- /dev/null
+++ b/src/com/jogamp/opencl/demos/gamma/Gamma.cl
@@ -0,0 +1,10 @@
+    /**
+     * gamma correction kernel
+     */
+    kernel void gamma(global float* image, const float gamma, const float scale, const int max) {
+        int index = get_global_id(0);
+        if (index >= max)  {
+            return;
+        }
+        image[index] = pow(image[index], gamma) * scale;
+    }
\ No newline at end of file