/* * do the thing */ int main(int argc, char *argv[]) { int fd_main, fd_watermark, fd_out; int option; int x, y; x = 0; y = 0; while((option = getopt(argc, argv, "x:y:")) != -1) { switch(option) { case 'x': x = atoi(optarg); break; case 'y': y = atoi(optarg); break; default: fprintf(stderr, "Unknown option: %c", option); exit(EXIT_FAILURE); } } fd_main = open("in.jpg", O_RDONLY); fd_watermark = open("watermark.jpg", O_RDONLY); fd_out = open("out.jpg", O_WRONLY | O_CREAT, 0666); if((fd_main < 0) || (fd_watermark < 0) || (fd_out < 0)) { fprintf(stderr, "Error opening input/output files\n"); exit(EXIT_FAILURE); } image_data_t *main = read_jpeg_file(fd_main); if(!main) exit(EXIT_FAILURE); printf("Input file data:\n"); dump_jpeg_info(main); image_data_t *watermark = read_jpeg_file(fd_watermark); if(!watermark) exit(EXIT_FAILURE); printf("\nWatermark file data:\n"); dump_jpeg_info(watermark); blit_jpeg(main, watermark, x, y); write_jpeg_file(fd_out, main); close(fd_main); close(fd_watermark); close(fd_out); return 0; }
int main(int argc, char** argv) { unsigned char* img_sub = 0; unsigned char* img_normal = 0; unsigned char* img_supra = 0; unsigned char* img_hdr = 0; int w = 0, h = 0; unsigned long i, vect_size; if(argc < 5) { printf( "Usage: ./hdr img1.jpg img2.jpg img3.jpg imgfinal.jpg\n"); return 1; } read_jpeg_file(&img_sub, &h, &w, argv[1]); read_jpeg_file(&img_normal, &h, &w, argv[2]); read_jpeg_file(&img_supra, &h, &w, argv[3]); vect_size = w*h*3; struct timeval start, end; gettimeofday(&start, NULL); apply_tone_mapping(img_sub, vect_size); apply_tone_mapping(img_normal, vect_size); apply_tone_mapping(img_supra, vect_size); img_hdr = malloc(vect_size* sizeof(unsigned char)); for(i =0; i< vect_size; ++i) { int temp =0; temp += (int)img_sub[i]; temp += (int)img_normal[i]; temp += (int)img_supra[i]; img_hdr[i] = (char)(temp/3); } gettimeofday(&end, NULL); printf("Times: %lf\n", (float)(((end.tv_sec * 1000000 + end.tv_usec) - (start.tv_sec * 1000000 + start.tv_usec)))/1000000); write_jpeg_file(img_hdr, h,w, argv[4], 100); return 0; }
int main( int argc, char *argv[] ) { clock_t tStart = clock(); if(argc!=3) { printf("\n\nError : Change input in this form: %s file1.jpg file2.jpg \n\n",argv[0]); return -1; } char *infilename = argv[1], *outfilename = argv[2]; int x; if( read_jpeg_file(infilename) == 1 ) { printf("The image was read successfully. \n"); } if(write_jpeg_file(outfilename)==1) { printf("The jpeg file was filtered successfully. \n"); } printf("Time taken: %lf s\n", (double)(clock() - tStart)/CLOCKS_PER_SEC); return 0; }
int main() { char *infilename = "test.jpg", *outfilename = "test_out.jpg"; /* Try opening a jpeg*/ if( read_jpeg_file( infilename ) > 0 ) { /* then copy it to another file */ if( write_jpeg_file( outfilename ) < 0 ) return -1; } else return -1; return 0; }
int main(int argc,char **argv) { int x,y; if(argc != 3){ printf("Usage: %s source.jpg dest.bmp",argv[0]); return -1; } x=y=0; /* Try opening a jpeg*/ if( read_jpeg_file( argv[1] ) > 0 ) write_bmp_file( argv[2] ); else return -1; free(raw_image); return 0; }
int main() { char *infilename = "pool.jpg", *outfilename = "test_out.jpg"; /* Try opening a jpeg*/ if( read_jpeg_file( infilename ) > 0 ) { filter_out_table(0, 100, 20, 255, 0, 100); /* then copy it to another file */ if( write_jpeg_file( outfilename ) < 0 ) return -1; } else return -1; return 0; }
int main(int argc, char **argv) { //int i, k; myimage *image = NULL; if ( argc != 2 ) { printf("Usage: %s <filename>\n", argv[0]); exit(-1); } image = read_jpeg_file(argv[1]); // // printf("%d %d %d\n", xdim, ydim, bpp); // save_pnm_file(image, stdout); printf("%f\n", image_blockiness(image)); free_myimage(image); return 0; }
int main(int argc, char *argv[]) { IplImage* img1, * img2, * stacked1, *stacked2; char stemp[1024]; // printf("Reading images: %s and %s\n",argv[1],argv[2]); if(argc != 3) {printf("\n\nUsage: getsift [image1.jpg] [image2.jpg]\n\n"); exit(0);} img1=read_jpeg_file(argv[1]); img2=read_jpeg_file(argv[2]); stacked1 = stack_imgs( img1, img2 ); stacked2 = stack_imgs( img1, img2 ); struct feature* feat1, * feat2, * feat; struct feature** nbrs; struct feature** RANnb; struct kd_node* kd_root; CvPoint pt1, pt2; double d0, d1; int n1, n2, k, i,j, m = 0, n=0; printf("SIFT Features Extraction: %s\n", argv[1]); n1 = sift_features( img1, &feat1 ); printf("Numbers of Features from %s: %d\n",argv[1], n1); printf("SIFT Features Extraction: %s\n", argv[2]); n2 = sift_features( img2, &feat2 ); printf("Numbers of Features from %s: %d\n",argv[2], n2); sprintf(stemp,"%s.sift.jpg",argv[1]); draw_keypoint( img1, feat1, n1 ); write_jpeg_file(stemp,img1); sprintf(stemp,"%s.sift.jpg",argv[2]); draw_keypoint( img2, feat2, n2 ); write_jpeg_file(stemp,img2); FILE * feat1file; FILE * feat2file; feat1file=fopen("features1.txt","w+"); for(i=0;i<n1;i++) { fprintf(feat1file,"(%lf,%lf): {",(feat1+i)->x,(feat1+i)->y); for(j=0;j<FEATURE_MAX_D;j++) fprintf(feat1file,"% lf ",(feat1+i)->descr[j]); fprintf(feat1file,"}\n"); } printf("coordinate and descriptor of %s keypoints have been written in featfile1.txt\n",argv[1]); feat2file=fopen("features2.txt","w+"); for(i=0;i<n2;i++) { fprintf(feat2file,"(%lf,%lf): {",(feat2+i)->x,(feat2+i)->y); for(j=0;j<FEATURE_MAX_D;j++) fprintf(feat2file,"% lf ",(feat2+i)->descr[j]); fprintf(feat2file,"}\n"); } printf("coordinate and descriptor of %s keypoints have been written in featfile2.txt\n",argv[2]); kd_root = kdtree_build( feat2, n2 ); for( i = 0; i < n1; i++ ) { feat = feat1 + i; k = kdtree_bbf_knn( kd_root, feat, 2, &nbrs, KDTREE_BBF_MAX_NN_CHKS ); if( k == 2 ) { d0 = descr_dist_sq( feat, nbrs[0] ); d1 = descr_dist_sq( feat, nbrs[1] ); if( d0 < d1 * NN_SQ_DIST_RATIO_THR ) { pt1 = cvPoint( cvRound( feat->x ), cvRound( feat->y ) ); pt2 = cvPoint( cvRound( nbrs[0]->x ), cvRound( nbrs[0]->y ) ); pt2.y += img1->height; cvLine( stacked1, pt1, pt2, CV_RGB(255,0,255), 1, 8, 0 ); m++; feat1[i].fwd_match = nbrs[0]; } } free( nbrs ); } printf("Found %d total matches\n", m ); write_jpeg_file("matches.jpg",stacked1); CvMat* H; int number=0; H = ransac_xform( feat1, n1, FEATURE_FWD_MATCH, lsq_homog, 4, 0.25, homog_xfer_err, 27.0, &RANnb, &number ); for( i = 0; i < number; i++ ) { pt1 = cvPoint( cvRound( RANnb[i]->x ), cvRound( RANnb[i]->y ) ); pt2 = cvPoint( cvRound( RANnb[i]->fwd_match->x ), cvRound( RANnb[i]->fwd_match->y ) ); pt2.y += img1->height; cvLine( stacked2, pt1, pt2, CV_RGB(255,0,255), 1, 8, 0 ); n++; } printf("Found %d total matches after RANSAC\n", n ); write_jpeg_file("matches.ransac.jpg",stacked2); cvReleaseImage( &img1 ); cvReleaseImage( &img2 ); kdtree_release( kd_root ); free( feat1 ); free( feat2 ); return 0; }