1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef PICTURE_UTILS_H 17 #define PICTURE_UTILS_H 18 19 #include <csetjmp> 20 #include <cstdio> 21 #include <memory> 22 #include <string> 23 24 #include "jpeglib.h" 25 26 namespace IC { 27 struct MyErrorMgr { 28 struct jpeg_error_mgr pub; 29 jmp_buf setjmp_buffer; 30 }; 31 32 using MyErrorPtr = MyErrorMgr *; 33 34 // The index order of BGR format 35 enum BgrIndex { 36 BGR_BLUE = 0, 37 BGR_GREEN, 38 BGR_RED, 39 }; 40 41 // The index order of RGB format 42 enum RgbIndex { 43 RGB_RED = 0, 44 RGB_GREEN, 45 RGB_BLUE, 46 }; 47 48 // Information about picture 49 struct PicInfo { 50 int widthSrc; 51 int heightSrc; 52 int widthDest; 53 int heightDest; 54 }; 55 56 // Change this to your own settings 57 const std::string JPEG_SRC_PATH = "/storage/data/image_classification_demo.jpg"; 58 const int WIDTH_DEST = 224; 59 const int HEIGHT_DEST = 224; 60 const int NUM_CHANNELS = 3; 61 62 int WriteJpegFile(const std::string &filename, int quality, uint8_t *srcBuffer, int srcWidth, int srcHeight); 63 int WriteBgrFile(const std::string &filename, uint8_t *dataBuffer, int bufferSize); 64 uint8_t *ConvertToCaffeInput(uint8_t *dataBuffer, int maxSize); 65 uint8_t *ReadJpegFile(const std::string &filename, int &srcWidth, int &srcHeight); 66 uint8_t *Resize(const int widthDest, const int heightDest, uint8_t *src, int widthSrc, int heightSrc); 67 } // namespace IC 68 #endif // PICTURE_UTILS_H 69
