diff --git a/samples/crop_image.c b/samples/crop_image.c new file mode 100644 index 0000000..a601781 --- /dev/null +++ b/samples/crop_image.c @@ -0,0 +1,57 @@ +/* + * Programming introduction with the SOD Embedded Image Processing API. + * Copyright (C) PixLab | Symisc Systems, https://sod.pixlab.io + */ +/* +* Compile this file together with the SOD embedded source code to generate +* the executable. For example: +* +* gcc sod.c crop_image.c -lm -Ofast -march=native -Wall -std=c99 -o sod_img_proc +* +* Under Microsoft Visual Studio (>= 2015), just drop `sod.c` and its accompanying +* header files on your source tree and you're done. If you have any trouble +* integrating SOD in your project, please submit a support request at: +* https://sod.pixlab.io/support.html +*/ +/* +* This simple program is a quick introduction on how to embed and start +* experimenting with SOD without having to do a lot of tedious +* reading and configuration. +* +* Make sure you have the latest release of SOD from: +* https://pixlab.io/downloads +* The SOD Embedded C/C++ documentation is available at: +* https://sod.pixlab.io/api.html +*/ +#include +#include "sod.h" +/* +* Extract a region (crop) from a given image. +*/ +int main(int argc, char *argv[]) +{ + /* Input image (pass a path or use the test image shipped with the samples ZIP archive) */ + const char *zInput = argc > 1 ? argv[1] : "./flower.jpg"; + /* Processed output image path */ + const char *zOut = argc > 2 ? argv[2] : "./out_crop.png"; + /* Load the input image in full color */ + sod_img imgIn = sod_img_load_from_file(zInput, SOD_IMG_COLOR /* full color channels */); + if (imgIn.data == 0) { + /* Invalid path, unsupported format, memory failure, etc. */ + puts("Cannot load input image..exiting"); + return 0; + } + /* Crop offset: Target region coordinates, height & width */ + int x = imgIn.w / 2; + int y = imgIn.h / 2; + int width = 128; + int height = 128; + /* Crop */ + sod_img crop = sod_crop_image(imgIn, x, y, width, height); + /* Save the cropped region to the specified path */ + sod_img_save_as_png(crop, zOut); + /* Cleanup */ + sod_free_image(imgIn); + sod_free_image(crop); + return 0; +} \ No newline at end of file