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Diffstat (limited to 'test/testsuites/common/image_helper/include/ImageHelper.h')
| -rw-r--r-- | test/testsuites/common/image_helper/include/ImageHelper.h | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/test/testsuites/common/image_helper/include/ImageHelper.h b/test/testsuites/common/image_helper/include/ImageHelper.h new file mode 100644 index 00000000..e9eabcc7 --- /dev/null +++ b/test/testsuites/common/image_helper/include/ImageHelper.h @@ -0,0 +1,247 @@ +/** + * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved + * + * 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 __IMAGEHELPER_H__ +#define __IMAGEHELPER_H__ + +#include "mv_common.h" + +#include <stddef.h> +#include <stdio.h> + +#include <jpeglib.h> + +/** + * @file ImageHelper.h + * @brief ImageHelper class definition. + */ + +namespace cv +{ + template<typename _Tp> class Scalar_; + typedef Scalar_<double> Scalar; + + class VideoCapture; + class VideoWriter; +} + +namespace MediaVision +{ +namespace Common +{ + +/** + * @class ImageHelper + * @brief Helper class that provides set of useful methods + * for image management. + */ +class ImageHelper +{ +public: + /** + * @brief Structure to keep information about width, height and colorspace of an image. + */ + struct ImageData + { + unsigned int imageWidth; /**< Image width */ + unsigned int imageHeight; /**< Image height */ + mv_colorspace_e imageColorspace; /**< Image colorspace */ + }; + + /** + * @brief Loads image from file to the buffer of unsigned chars. + * + * @since_tizen 3.0 + * @param [in] filePath Path to the image file to be loaded to the + * @a pDataBuffer + * @param [out] pDataBuffer The buffer of unsigned chars where image data + * will be stored + * @param [out] pBufferSize The size of the @a pDataBuffer + * @param [out] pImageData The image data (structure that keeps + * information about image width, height, + * and colorspace) + * @return @c 0 on success, otherwise a negative error value + * + * @see ImageHelper::saveImageFromBuffer() + */ + static int loadImageToBuffer( + const char *filePath, + unsigned char **pDataBuffer, + unsigned long *pBufferSize, + ImageData *pImageData); + + /** + * @brief Saves image stored into @a pDataBuffer to the file in jpeg format. + * + * @since_tizen 3.0 + * @param [in] filePath The path to the file where image will be saved + * @param [in] pDataBuffer Data buffer that contains image data + * @param [in] imageData The image data (structure that keeps + * information about image width, height, + * and colorspace) + * @param [in] quality Quality for the output jpeg file (0..100) + * @return @c 0 on success, otherwise a negative error value + * + * @see ImageHelper::loadImageToBuffer() + */ + static int saveImageFromBuffer( + const char *filePath, + unsigned char *pDataBuffer, + const ImageData& imageData, + int quality = 100); + + /** + * @brief Draws the rectangle of specified size on the image data buffer. + * + * @since_tizen 3.0 + * @param [in] topLeftVertexX The rectangle top left corner + * x coordinate + * @param [in] topLeftVertexY The rectangle top left corner + * y coordinate + * @param [in] bottomRightVertexX The rectangle bottom right corner + * x coordinate + * @param [in] bottomRightVertexY The rectangle bottom right corner + * y coordinate + * @param [in] thickness The thickness of the rectangle border + * (negative value to draw filled rectangle) + * @param [in] color The color of the rectangle border + * @param [in] imageData The image data (structure that keeps + * information about image width, height, + * and colorspace). Colorspace has to be + * @c MEDIA_VISION_COLORSPACE_RGB888 + * @param [in, out] pDataBuffer The pointer to the image data buffer + * which will be used for rectangle drawing + * @return @c 0 on success, otherwise a negative error value + */ + static int drawRectangleOnBuffer( + int topLeftVertexX, + int topLeftVertexY, + int bottomRightVertexX, + int bottomRightVertexY, + int thickness, + const cv::Scalar& color, + const ImageData& imageData, + unsigned char *pDataBuffer); + + /** + * @brief Draws the quadrangle of specified size on the image data buffer. + * + * @since_tizen 3.0 + * @param [in] location The quadrangle structure + * @param [in] thickness The thickness of the quadrangle border + * @param [in] color The color of the quadrangle border + * @param [in] imageData The image data (structure that keeps + * information about image width, height, + * and colorspace). Colorspace has to be + * @c MEDIA_VISION_COLORSPACE_RGB888 + * @param [in, out] pDataBuffer The pointer to the image data buffer + * which will be used for quadrangle drawing + * @return @c 0 on success, otherwise a negative error value + */ + static int drawQuadrangleOnBuffer( + mv_quadrangle_s location, + int thickness, + const cv::Scalar& color, + const ImageData& imageData, + unsigned char *pDataBuffer); + + /** + * @brief Convers libjpeg colorspace to the Tizen 'image util' colorspace. + * + * @since_tizen 3.0 + * @param [in] inColorspace The libjpeg colorspace to be converted. + * @param [out] pOutColorspace The Tizen 'image util' colorspace that + * will be obtained after conversion + * @return @c 0 on success, otherwise a negative error value + * + * @see ImageHelper::convertMVColorspaceToJpeglibColorspace() + */ + static int convertJpeglibColorspaceToMVColorspace( + J_COLOR_SPACE inColorspace, + mv_colorspace_e *pOutColorspace); + + /** + * @brief Convers libjpeg colorspace to the Tizen image util colorspace. + * + * @since_tizen 3.0 + * @param [in] inColorspace The Tizen 'image util' colorspace to be + * converted + * @param [out] pOutColorspace The libjpeg colorspace that will be + * obtained after conversion + * @return @c 0 on success, otherwise a negative error value + * + * @see ImageHelper::convertJpeglibColorspaceToMVColorspace() + */ + static int convertMVColorspaceToJpeglibColorspace( + mv_colorspace_e inColorspace, + J_COLOR_SPACE *pOutColorspace); + + /** + * @brief Converts image data to the image data of RGB888 colorspace. + * + * @since_tizen 3.0 + * @param [in] pInBuffer Buffer with image data to be converted to + * RGB888 colorspace + * @param [in] imageData The image data (structure that keeps + * information about image width, height, + * and colorspace) for source image + * @param [out] pOutBuffer Buffer with image data to be generated as + * a result of the conversion + * @return @c 0 on success, otherwise a negative error value + */ + static int convertBufferToRGB888( + const unsigned char *pInBuffer, + const ImageData& imageData, + unsigned char **pOutBuffer); + + /** + * @brief Determines number of channels (components) for the colorspace. + * + * @since_tizen 3.0 + * @param [in] colorspace Colorspace for which number of + * components will be determined + * @param [out] pComponentsNumber Number of components to be determined + * @return @c 0 on success, otherwise a negative error value + */ + static int getNumberOfComponents( + mv_colorspace_e colorspace, + int *pComponentsNumber); + +private: + /** + * @brief Converts buffer with image data in Y800 colorspace format + * to the buffer with image data in RGB888 colorspace format. + * + * @since_tizen 3.0 + * @param [in] pInBuffer The buffer with data in Y800 colorspace format + * @param [in] imageData The image data (structure that keeps + * information about image width, height, and + * colorspace) for source buffer + * @param [out] pOutBuffer The buffer that will contain converted image + * data in RGB888 colorspace format + * @return @c 0 on success, otherwise a negative error value + */ + static int convertY800ToRGB( + const unsigned char *pInBuffer, + const ImageData& imageData, + unsigned char **pOutBuffer); + +}; + +} /* namespace Common */ +} /* namespace MediaVision */ + +#endif /* __IMAGEHELPER_H__ */ |