From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001 From: Anthony Barbier Date: Mon, 4 Sep 2017 18:44:23 +0100 Subject: COMPMID-344 Updated doxygen Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae --- src/core/CL/cl_kernels/threshold.cl | 104 ++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 src/core/CL/cl_kernels/threshold.cl (limited to 'src/core/CL/cl_kernels/threshold.cl') diff --git a/src/core/CL/cl_kernels/threshold.cl b/src/core/CL/cl_kernels/threshold.cl new file mode 100644 index 0000000000..2b1e6ff35d --- /dev/null +++ b/src/core/CL/cl_kernels/threshold.cl @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2016, 2017 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "helpers.h" + +/** Perform binary thresholding on an image. + * + * @param[in] in_ptr Pointer to the source image + * @param[in] in_stride_x Stride of the source image in X dimension (in bytes) + * @param[in] in_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] in_stride_y Stride of the source image in Y dimension (in bytes) + * @param[in] in_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] in_offset_first_element_in_bytes The offset of the first element in the first source image + * @param[out] out_ptr Pointer to the destination image + * @param[in] out_stride_x Stride of the destination image in X dimension (in bytes) + * @param[in] out_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] out_stride_y Stride of the destination image in Y dimension (in bytes) + * @param[in] out_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination image + * @param[in] false_val False value + * @param[in] true_val True value + * @param[in] threshold The thresold value + */ +__kernel void threshold_binary( + IMAGE_DECLARATION(in), + IMAGE_DECLARATION(out), + const uchar false_val, + const uchar true_val, + const uchar threshold) +{ + // Get pixels pointer + Image in = CONVERT_TO_IMAGE_STRUCT(in); + Image out = CONVERT_TO_IMAGE_STRUCT(out); + + // Load data + uchar16 in_data = vload16(0, in.ptr); + + // Perform binary thresholding + in_data = select((uchar16)false_val, (uchar16)true_val, in_data > (uchar16)threshold); + + // Store result + vstore16(in_data, 0, out.ptr); +} + +/** Perform range thresholding on an image. + * + * @param[in] in_ptr Pointer to the source image + * @param[in] in_stride_x Stride of the source image in X dimension (in bytes) + * @param[in] in_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] in_stride_y Stride of the source image in Y dimension (in bytes) + * @param[in] in_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] in_offset_first_element_in_bytes The offset of the first element in the first source image + * @param[out] out_ptr Pointer to the destination image + * @param[in] out_stride_x Stride of the destination image in X dimension (in bytes) + * @param[in] out_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] out_stride_y Stride of the destination image in Y dimension (in bytes) + * @param[in] out_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination image + * @param[in] false_val False value + * @param[in] true_val True value + * @param[in] lower Lower threshold + * @param[in] upper Upper threshold + */ +__kernel void threshold_range( + IMAGE_DECLARATION(in), + IMAGE_DECLARATION(out), + const uchar false_val, + const uchar true_val, + const uchar lower, + const uchar upper) +{ + // Get pixels pointer + Image in = CONVERT_TO_IMAGE_STRUCT(in); + Image out = CONVERT_TO_IMAGE_STRUCT(out); + + // Load data + uchar16 in_data = vload16(0, in.ptr); + + // Perform range thresholding + in_data = select((uchar16)true_val, (uchar16)false_val, in_data > (uchar16)upper || in_data < (uchar16)lower); + + // Store result + vstore16(in_data, 0, out.ptr); +} -- cgit v1.2.1