diff options
Diffstat (limited to 'modules/image/src/img_alx.cpp')
| -rw-r--r-- | modules/image/src/img_alx.cpp | 298 |
1 files changed, 0 insertions, 298 deletions
diff --git a/modules/image/src/img_alx.cpp b/modules/image/src/img_alx.cpp deleted file mode 100644 index f1f0b93..0000000 --- a/modules/image/src/img_alx.cpp +++ /dev/null @@ -1,298 +0,0 @@ -/******************************************************************************
- * Copyright (C) 2018 Alejandro Colomar Andrés *
- ******************************************************************************/
-
-
-/******************************************************************************
- ******* headers **************************************************************
- ******************************************************************************/
-/* Standard C ----------------------------------------------------------------*/
- /* true & false */
- #include <cstdbool>
- /* snprintf() */
- #include <cstdio>
-
-/* Packages ------------------------------------------------------------------*/
- /* opencv */
- #include <opencv2/opencv.hpp>
-
-/* libalx --------------------------------------------------------------------*/
- /* alx_median_uint8() */
- #include "alx_math.hpp"
-
-/* Module --------------------------------------------------------------------*/
- /* data */
- #include "img_iface.hpp"
-
- #include "img_alx.hpp"
-
-
-/******************************************************************************
- ******* static functions *****************************************************
- ******************************************************************************/
-static void img_alx_local_max (class cv::Mat *imgptr);
-static void img_alx_lines_horizontal (class cv::Mat *imgptr);
-static void img_alx_lines_vertical (class cv::Mat *imgptr);
-static void img_alx_mean_horizontal (class cv::Mat *imgptr);
-static void img_alx_mean_vertical (class cv::Mat *imgptr);
-static void img_alx_median_horizontal (class cv::Mat *imgptr);
-static void img_alx_median_vertical (class cv::Mat *imgptr);
-
-
-/******************************************************************************
- ******* main *****************************************************************
- ******************************************************************************/
-void img_alx_act (class cv::Mat *imgptr, int action, void *data)
-{
- switch (action) {
- case IMG_ALX_ACT_LOCAL_MAX:
- img_alx_local_max(imgptr);
- break;
-
- case IMG_ALX_ACT_LINES_HORIZONTAL:
- img_alx_lines_horizontal(imgptr);
- break;
- case IMG_ALX_ACT_LINES_VERTICAL:
- img_alx_lines_vertical(imgptr);
- break;
-
- case IMG_ALX_ACT_MEAN_HORIZONTAL:
- img_alx_mean_horizontal(imgptr);
- break;
- case IMG_ALX_ACT_MEAN_VERTICAL:
- img_alx_mean_vertical(imgptr);
- break;
- case IMG_ALX_ACT_MEDIAN_HORIZONTAL:
- img_alx_median_horizontal(imgptr);
- break;
- case IMG_ALX_ACT_MEDIAN_VERTICAL:
- img_alx_median_vertical(imgptr);
- break;
- }
-}
-
-
-/******************************************************************************
- ******* static functions *****************************************************
- ******************************************************************************/
-static void img_alx_local_max (class cv::Mat *imgptr)
-{
- int i;
- int j;
- int k;
- int l;
- bool local_max;
- int dist_min;
- int val_min;
- class cv::Mat imgtmp;
-
- /* pointer to a pixel (in imgptr) */
- uint8_t *img_pix;
- /* pointer to a pixel near img_pix (in imgptr) */
- uint8_t *near_pix;
- /* pointer to a pixel (same position as img_pix, but in imgtmp) */
- uint8_t *tmp_pix;
-
- /* Tmp image copy */
- imgptr->copyTo(imgtmp);
- /* Minimum distance between local maxima */
- dist_min = 16;
- /* Minimum value of local maxima */
- val_min = 16;
-
- for (i = 0; i < imgptr->rows; i++) {
- for (j = 0; j < imgptr->cols; j++) {
- img_pix = imgptr->data + i * imgptr->step + j;
- tmp_pix = imgtmp.data + i * imgptr->step + j;
- local_max = true;
-
- if (*img_pix < val_min) {
- local_max = false;
- }
-
- for (k = i - dist_min; (k < i + dist_min+1) && local_max; k++) {
- for (l = j - dist_min; (l < j + dist_min+1) && local_max; l++) {
- near_pix = imgptr->data + k * imgptr->step + l;
- if (k >= 0 && k < imgptr->rows) {
- if (l >= 0 && l < imgptr->cols) {
- if (*img_pix < *near_pix) {
- local_max = false;
- }
- }
- }
- }
- }
-
- if (local_max) {
- *tmp_pix = *img_pix;
- } else {
- *tmp_pix = 0;
- }
- }
- }
-
- /* Cleanup */
- imgtmp.copyTo(*imgptr);
- imgtmp.release();
-}
-
-static void img_alx_lines_horizontal (class cv::Mat *imgptr)
-{
- int i;
- int j;
- bool white;
-
- /* pointer to a pixel (in imgptr) */
- uint8_t *img_pix;
-
- for (i = 0; i < imgptr->rows; i++) {
- white = false;
-
- for (j = 0; j < imgptr->cols; j++) {
- img_pix = imgptr->data + i * imgptr->step + j;
- if (*img_pix) {
- white = true;
- break;
- }
- }
-
- if (white) {
- for (j = 0; j < imgptr->cols; j++) {
- img_pix = imgptr->data + i * imgptr->step + j;
- *img_pix = 255;
- }
- }
- }
-}
-
-static void img_alx_lines_vertical (class cv::Mat *imgptr)
-{
- int i;
- int j;
- bool white;
-
- /* pointer to a pixel (in imgptr) */
- uint8_t *img_pix;
-
- for (i = 0; i < imgptr->cols; i++) {
- white = false;
-
- for (j = 0; j < imgptr->rows; j++) {
- img_pix = imgptr->data + j * imgptr->step + i;
- if (*img_pix) {
- white = true;
- break;
- }
- }
-
- if (white) {
- for (j = 0; j < imgptr->rows; j++) {
- img_pix = imgptr->data + j * imgptr->step + i;
- *img_pix = 255;
- }
- }
- }
-}
-
-static void img_alx_mean_horizontal (class cv::Mat *imgptr)
-{
- int i;
- int j;
- uint32_t tmp;
- uint8_t mean;
-
- /* pointer to a pixel (in imgptr) */
- uint8_t *img_pix;
-
- for (i = 0; i < imgptr->rows; i++) {
- tmp = 0;
- for (j = 0; j < imgptr->cols; j++) {
- img_pix = imgptr->data + i * imgptr->step + j;
- tmp += *img_pix;
- }
- mean = tmp / imgptr->cols;
-
- for (j = 0; j < imgptr->cols; j++) {
- img_pix = imgptr->data + i * imgptr->step + j;
- *img_pix = mean;
- }
- }
-}
-
-static void img_alx_mean_vertical (class cv::Mat *imgptr)
-{
- int i;
- int j;
- uint32_t tmp;
- uint8_t mean;
-
- /* pointer to a pixel (in imgptr) */
- uint8_t *img_pix;
-
- for (i = 0; i < imgptr->cols; i++) {
- tmp = 0;
- for (j = 0; j < imgptr->rows; j++) {
- img_pix = imgptr->data + j * imgptr->step + i;
- tmp += *img_pix;
- }
- mean = tmp / imgptr->rows;
-
- for (j = 0; j < imgptr->rows; j++) {
- img_pix = imgptr->data + j * imgptr->step + i;
- *img_pix = mean;
- }
- }
-}
-
-static void img_alx_median_horizontal (class cv::Mat *imgptr)
-{
- int i;
- int j;
- uint8_t row [imgptr->cols];
- uint8_t median;
-
- /* pointer to a pixel (in imgptr) */
- uint8_t *img_pix;
-
- for (i = 0; i < imgptr->rows; i++) {
- for (j = 0; j < imgptr->cols; j++) {
- img_pix = imgptr->data + i * imgptr->step + j;
- row[j] = *img_pix;
- }
- median = alx_median_uint8(imgptr->cols, row);
-
- for (j = 0; j < imgptr->cols; j++) {
- img_pix = imgptr->data + i * imgptr->step + j;
- *img_pix = median;
- }
- }
-}
-
-static void img_alx_median_vertical (class cv::Mat *imgptr)
-{
- int i;
- int j;
- uint8_t col [imgptr->rows];
- uint8_t median;
-
- /* pointer to a pixel (in imgptr) */
- uint8_t *img_pix;
-
- for (i = 0; i < imgptr->cols; i++) {
- for (j = 0; j < imgptr->rows; j++) {
- img_pix = imgptr->data + j * imgptr->step + i;
- col[j] = *img_pix;
- }
- median = alx_median_uint8(imgptr->rows, col);
-
- for (j = 0; j < imgptr->rows; j++) {
- img_pix = imgptr->data + j * imgptr->step + i;
- *img_pix = median;
- }
- }
-}
-
-
-/******************************************************************************
- ******* end of file **********************************************************
- ******************************************************************************/
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