static void ewin_cb_export_clicked(GtkWidget *widget, gpointer data) { struct fp_img *scan = NULL; int finger = GPOINTER_TO_INT(data); int r; char path[2048]; sprintf(path,"captured_%d.pgm",finger); if (!fp_dev_supports_imaging(fpdev)) { fprintf(stderr, "this device does not have imaging capabilities.\n"); return; } r = fp_dev_img_capture(fpdev,0,&scan); if (r != 0) { fprintf(stderr,"Image Capture Failed: %d\n",r); fp_img_free(scan); return; } fp_img_standardize(scan); r = fp_img_save_to_file(scan,path); fp_img_free(scan); if (r != 0) { fprintf(stderr,"Image Save Failed: %d\n",r); } return; }
void fpi_imgdev_image_captured(struct fp_img_dev *imgdev, struct fp_img *img) { struct fp_print_data *print; int r; fp_dbg(""); if (imgdev->action_state != IMG_ACQUIRE_STATE_AWAIT_IMAGE) { fp_dbg("ignoring due to current state %d", imgdev->action_state); return; } if (imgdev->action_result) { fp_dbg("not overwriting existing action result"); return; } r = sanitize_image(imgdev, &img); if (r < 0) { imgdev->action_result = r; fp_img_free(img); goto next_state; } fp_img_standardize(img); imgdev->acquire_img = img; r = fpi_img_to_print_data(imgdev, img, &print); if (r < 0) { fp_dbg("image to print data conversion error: %d", r); imgdev->action_result = FP_ENROLL_RETRY; goto next_state; } else if (img->minutiae->num < MIN_ACCEPTABLE_MINUTIAE) { fp_dbg("not enough minutiae, %d/%d", img->minutiae->num, MIN_ACCEPTABLE_MINUTIAE); fp_print_data_free(print); /* depends on FP_ENROLL_RETRY == FP_VERIFY_RETRY */ imgdev->action_result = FP_ENROLL_RETRY; goto next_state; } imgdev->acquire_data = print; switch (imgdev->action) { case IMG_ACTION_ENROLL: imgdev->action_result = FP_ENROLL_COMPLETE; break; case IMG_ACTION_VERIFY: verify_process_img(imgdev); break; case IMG_ACTION_IDENTIFY: identify_process_img(imgdev); break; default: BUG(); break; } next_state: imgdev->action_state = IMG_ACQUIRE_STATE_AWAIT_FINGER_OFF; dev_change_state(imgdev, IMGDEV_STATE_AWAIT_FINGER_OFF); }
/**Capture an image, standardize and binarize it, and write it to a file*/ void image_save_binarized(char* filename){ struct fp_img* img = image_get(); fp_img_standardize(img); struct fp_img* img_binarized = fp_img_binarize(img); image_writefile(img_binarized, filename); fp_img_free(img); //free it fp_img_free(img_binarized); }
void fpi_imgdev_image_captured(struct fp_img_dev *imgdev, struct fp_img *img) { struct fp_print_data *print; int r; fp_dbg(""); if (imgdev->action_state != IMG_ACQUIRE_STATE_AWAIT_IMAGE) { fp_dbg("ignoring due to current state %d", imgdev->action_state); return; } if (imgdev->action_result) { fp_dbg("not overwriting existing action result"); return; } r = sanitize_image(imgdev, &img); if (r < 0) { imgdev->action_result = r; fp_img_free(img); goto next_state; } fp_img_standardize(img); imgdev->acquire_img = img; if (imgdev->action != IMG_ACTION_CAPTURE) { r = fpi_img_to_print_data(imgdev, img, &print); if (r < 0) { fp_dbg("image to print data conversion error: %d", r); imgdev->action_result = FP_ENROLL_RETRY; goto next_state; } else if (img->minutiae->num < MIN_ACCEPTABLE_MINUTIAE) { fp_dbg("not enough minutiae, %d/%d", img->minutiae->num, MIN_ACCEPTABLE_MINUTIAE); fp_print_data_free(print); /* depends on FP_ENROLL_RETRY == FP_VERIFY_RETRY */ imgdev->action_result = FP_ENROLL_RETRY; goto next_state; } } imgdev->acquire_data = print; switch (imgdev->action) { case IMG_ACTION_ENROLL: if (!imgdev->enroll_data) { imgdev->enroll_data = fpi_print_data_new(imgdev->dev); } BUG_ON(g_slist_length(print->prints) != 1); /* Move print data from acquire data into enroll_data */ imgdev->enroll_data->prints = g_slist_prepend(imgdev->enroll_data->prints, print->prints->data); print->prints = g_slist_remove(print->prints, print->prints->data); fp_print_data_free(imgdev->acquire_data); imgdev->acquire_data = NULL; imgdev->enroll_stage++; if (imgdev->enroll_stage == imgdev->dev->nr_enroll_stages) imgdev->action_result = FP_ENROLL_COMPLETE; else imgdev->action_result = FP_ENROLL_PASS; break; case IMG_ACTION_VERIFY: verify_process_img(imgdev); break; case IMG_ACTION_IDENTIFY: identify_process_img(imgdev); break; case IMG_ACTION_CAPTURE: imgdev->action_result = FP_CAPTURE_COMPLETE; break; default: BUG(); break; } next_state: imgdev->action_state = IMG_ACQUIRE_STATE_AWAIT_FINGER_OFF; dev_change_state(imgdev, IMGDEV_STATE_AWAIT_FINGER_OFF); }
/**Capture an image, standardize it, and write it to a file*/ void image_save(char* filename){ struct fp_img* img = image_get(); fp_img_standardize(img); image_writefile(img, filename); fp_img_free(img); //free it }