diff options
| author | Lukas Stockner <lukas.stockner@freenet.de> | 2017-06-09 03:30:06 +0300 |
|---|---|---|
| committer | Lukas Stockner <lukas.stockner@freenet.de> | 2017-06-09 04:46:11 +0300 |
| commit | 705c43be0bf232cbba9dd278e1307d894568f2e0 (patch) | |
| tree | b2930b793111fe1a870cc9804a6e860117ca8773 /intern/cycles/kernel/kernels | |
| parent | 8a757bf34ad2d01104e300e0ce529d01f2965e09 (diff) | |
Cycles Denoising: Merge outlier heuristic and confidence interval test
The previous outlier heuristic only checked whether the pixel is more than
twice as bright compared to the 75% quantile of the 5x5 neighborhood.
While this detected fireflies robustly, it also incorrectly marked a lot of
legitimate small highlights as outliers and filtered them away.
This commit adds an additional condition for marking a pixel as a firefly:
In addition to being above the reference brightness, the lower end of the
3-sigma confidence interval has to be below it.
Since the lower end approximates how low the true value of the pixel might be,
this test separates pixels that are supposed to be very bright from pixels that
are very bright due to random fireflies.
Also, since there is now a reliable outlier filter as a preprocessing step,
the additional confidence interval test in the reconstruction kernel is no
longer needed.
Diffstat (limited to 'intern/cycles/kernel/kernels')
| -rw-r--r-- | intern/cycles/kernel/kernels/cpu/filter_cpu.h | 2 | ||||
| -rw-r--r-- | intern/cycles/kernel/kernels/cpu/filter_cpu_impl.h | 4 | ||||
| -rw-r--r-- | intern/cycles/kernel/kernels/cuda/filter.cu | 3 | ||||
| -rw-r--r-- | intern/cycles/kernel/kernels/opencl/filter.cl | 3 |
4 files changed, 1 insertions, 11 deletions
diff --git a/intern/cycles/kernel/kernels/cpu/filter_cpu.h b/intern/cycles/kernel/kernels/cpu/filter_cpu.h index ffd34c293fc..2ed713299fd 100644 --- a/intern/cycles/kernel/kernels/cpu/filter_cpu.h +++ b/intern/cycles/kernel/kernels/cpu/filter_cpu.h @@ -107,8 +107,6 @@ void KERNEL_FUNCTION_FULL_NAME(filter_nlm_construct_gramian)(int dx, int dy, float *difference_image, float *buffer, - float *color_pass, - float *variance_pass, float *transform, int *rank, float *XtWX, diff --git a/intern/cycles/kernel/kernels/cpu/filter_cpu_impl.h b/intern/cycles/kernel/kernels/cpu/filter_cpu_impl.h index 261176846b1..8dc1a8d583c 100644 --- a/intern/cycles/kernel/kernels/cpu/filter_cpu_impl.h +++ b/intern/cycles/kernel/kernels/cpu/filter_cpu_impl.h @@ -213,8 +213,6 @@ void KERNEL_FUNCTION_FULL_NAME(filter_nlm_construct_gramian)(int dx, int dy, float *difference_image, float *buffer, - float *color_pass, - float *variance_pass, float *transform, int *rank, float *XtWX, @@ -229,7 +227,7 @@ void KERNEL_FUNCTION_FULL_NAME(filter_nlm_construct_gramian)(int dx, #ifdef KERNEL_STUB STUB_ASSERT(KERNEL_ARCH, filter_nlm_construct_gramian); #else - kernel_filter_nlm_construct_gramian(dx, dy, difference_image, buffer, color_pass, variance_pass, transform, rank, XtWX, XtWY, load_int4(rect), load_int4(filter_rect), w, h, f, pass_stride); + kernel_filter_nlm_construct_gramian(dx, dy, difference_image, buffer, transform, rank, XtWX, XtWY, load_int4(rect), load_int4(filter_rect), w, h, f, pass_stride); #endif } diff --git a/intern/cycles/kernel/kernels/cuda/filter.cu b/intern/cycles/kernel/kernels/cuda/filter.cu index 2edbff08087..009c3fde9d5 100644 --- a/intern/cycles/kernel/kernels/cuda/filter.cu +++ b/intern/cycles/kernel/kernels/cuda/filter.cu @@ -207,8 +207,6 @@ CUDA_LAUNCH_BOUNDS(CUDA_THREADS_BLOCK_WIDTH, CUDA_KERNEL_MAX_REGISTERS) kernel_cuda_filter_nlm_construct_gramian(int dx, int dy, const float *ccl_restrict difference_image, const float *ccl_restrict buffer, - float *color_pass, - float *variance_pass, float const* __restrict__ transform, int *rank, float *XtWX, @@ -225,7 +223,6 @@ kernel_cuda_filter_nlm_construct_gramian(int dx, int dy, dx, dy, difference_image, buffer, - color_pass, variance_pass, transform, rank, XtWX, XtWY, rect, filter_rect, diff --git a/intern/cycles/kernel/kernels/opencl/filter.cl b/intern/cycles/kernel/kernels/opencl/filter.cl index 0462ca6f9bc..ba53ba4b26f 100644 --- a/intern/cycles/kernel/kernels/opencl/filter.cl +++ b/intern/cycles/kernel/kernels/opencl/filter.cl @@ -207,8 +207,6 @@ __kernel void kernel_ocl_filter_nlm_construct_gramian(int dx, int dy, const ccl_global float *ccl_restrict difference_image, const ccl_global float *ccl_restrict buffer, - ccl_global float *color_pass, - ccl_global float *variance_pass, const ccl_global float *ccl_restrict transform, ccl_global int *rank, ccl_global float *XtWX, @@ -227,7 +225,6 @@ __kernel void kernel_ocl_filter_nlm_construct_gramian(int dx, dx, dy, difference_image, buffer, - color_pass, variance_pass, transform, rank, XtWX, XtWY, rect, filter_rect, |