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author | Kshitij Sisodia <kshitij.sisodia@arm.com> | 2022-05-06 09:13:03 +0100 |
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committer | Kshitij Sisodia <kshitij.sisodia@arm.com> | 2022-05-06 17:11:41 +0100 |
commit | aa4bcb14d0cbee910331545dd2fc086b58c37170 (patch) | |
tree | e67a43a43f61c6f8b6aad19018b0827baf7e31a6 /source/application/api/common/include/ImageUtils.hpp | |
parent | fcca863bafd5f33522bc14c23dde4540e264ec94 (diff) | |
download | ml-embedded-evaluation-kit-aa4bcb14d0cbee910331545dd2fc086b58c37170.tar.gz |
MLECO-3183: Refactoring application sources
Platform agnostic application sources are moved into application
api module with their own independent CMake projects.
Changes for MLECO-3080 also included - they create CMake projects
individial API's (again, platform agnostic) that dependent on the
common logic. The API for KWS_API "joint" API has been removed and
now the use case relies on individual KWS, and ASR API libraries.
Change-Id: I1f7748dc767abb3904634a04e0991b74ac7b756d
Signed-off-by: Kshitij Sisodia <kshitij.sisodia@arm.com>
Diffstat (limited to 'source/application/api/common/include/ImageUtils.hpp')
-rw-r--r-- | source/application/api/common/include/ImageUtils.hpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/source/application/api/common/include/ImageUtils.hpp b/source/application/api/common/include/ImageUtils.hpp new file mode 100644 index 0000000..a8c7650 --- /dev/null +++ b/source/application/api/common/include/ImageUtils.hpp @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2022 Arm Limited. All rights reserved. + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef IMAGE_UTILS_HPP +#define IMAGE_UTILS_HPP + +#include <cstddef> +#include <cstdint> +#include <forward_list> +#include <vector> + +/* Helper macro to convert RGB888 to RGB565 format. */ +#define RGB888_TO_RGB565(R8,G8,B8) ((((R8>>3) & 0x1F) << 11) | \ + (((G8>>2) & 0x3F) << 5) | \ + ((B8>>3) & 0x1F)) + +constexpr uint16_t COLOR_BLACK = 0; +constexpr uint16_t COLOR_GREEN = RGB888_TO_RGB565( 0, 255, 0); // 2016; +constexpr uint16_t COLOR_YELLOW = RGB888_TO_RGB565(255, 255, 0); // 65504; + + +namespace arm { +namespace app { +namespace image { + + /** + * Contains the x,y co-ordinates of a box centre along with the box width and height. + */ + struct Box { + float x; + float y; + float w; + float h; + }; + + struct Detection { + Box bbox; + std::vector<float> prob; + float objectness; + }; + + /** + * @brief Calculate the 1D overlap. + * @param[in] x1Center First center point. + * @param[in] width1 First width. + * @param[in] x2Center Second center point. + * @param[in] width2 Second width. + * @return The overlap between the two lines. + **/ + float Calculate1DOverlap(float x1Center, float width1, float x2Center, float width2); + + /** + * @brief Calculate the intersection between the two given boxes. + * @param[in] box1 First box. + * @param[in] box2 Second box. + * @return The intersection value. + **/ + float CalculateBoxIntersect(Box& box1, Box& box2); + + /** + * @brief Calculate the union between the two given boxes. + * @param[in] box1 First box. + * @param[in] box2 Second box. + * @return The two given boxes union value. + **/ + float CalculateBoxUnion(Box& box1, Box& box2); + + /** + * @brief Calculate the intersection over union between the two given boxes. + * @param[in] box1 First box. + * @param[in] box2 Second box. + * @return The intersection over union value. + **/ + float CalculateBoxIOU(Box& box1, Box& box2); + + /** + * @brief Calculate the Non-Maxima suppression on the given detection boxes. + * @param[in] detections List of Detection boxes. + * @param[in] classes Number of classes. + * @param[in] iouThreshold Intersection over union threshold. + **/ + void CalculateNMS(std::forward_list<Detection>& detections, int classes, float iouThreshold); + + /** + * @brief Helper function to convert a UINT8 image to INT8 format. + * @param[in,out] data Pointer to the data start. + * @param[in] kMaxImageSize Total number of pixels in the image. + **/ + void ConvertImgToInt8(void* data, size_t kMaxImageSize); + + /** + * @brief Converts RGB image to grayscale. + * @param[in] srcPtr Pointer to RGB source image. + * @param[out] dstPtr Pointer to grayscale destination image. + * @param[in] imgSz Destination image size. + **/ + void RgbToGrayscale(const uint8_t* srcPtr, uint8_t* dstPtr, size_t dstImgSz); + +} /* namespace image */ +} /* namespace app */ +} /* namespace arm */ + +#endif /* IMAGE_UTILS_HPP */
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