@brief Sample code showing how to detect edges using the Laplace operator
"""
import sys
import cv2 as cv

def main(argv):
    # [variables]
    # Declare the variables we are going to use
    ddepth = cv.CV_16S

            

Reported by Pylint.

              import sys
import cv2 as cv

def main(argv):
    # [variables]
    # Declare the variables we are going to use
    ddepth = cv.CV_16S
    kernel_size = 3
    window_name = "Laplace Demo"

            

Reported by Pylint.

                  # [variables]

    # [load]
    imageName = argv[0] if len(argv) > 0 else 'lena.jpg'

    src = cv.imread(cv.samples.findFile(imageName), cv.IMREAD_COLOR) # Load an image

    # Check if image is loaded fine
    if src is None:

            

Reported by Pylint.

                // the data in it upon use.  The fix is to make a copy
  // of the structure before using it and use that copy instead.
  va_list backup_ap;
  va_copy(backup_ap, ap);
  int result = vsnprintf(space, kSpaceLength, format, backup_ap);
  va_end(backup_ap);

  if (result < kSpaceLength) {
    if (result >= 0) {

            

Reported by Cppcheck.

                // of the structure before using it and use that copy instead.
  va_list backup_ap;
  va_copy(backup_ap, ap);
  int result = vsnprintf(space, kSpaceLength, format, backup_ap);
  va_end(backup_ap);

  if (result < kSpaceLength) {
    if (result >= 0) {
      // Normal case -- everything fit.

            

Reported by Cppcheck.

                va_list backup_ap;
  va_copy(backup_ap, ap);
  int result = vsnprintf(space, kSpaceLength, format, backup_ap);
  va_end(backup_ap);

  if (result < kSpaceLength) {
    if (result >= 0) {
      // Normal case -- everything fit.
      dst->append(space, result);

            

Reported by Cppcheck.

              ## [imports]
import cv2 as cv
import sys
## [imports]
## [imread]
img = cv.imread(cv.samples.findFile("starry_night.jpg"))
## [imread]
## [empty]
if img is None:

            

Reported by Pylint.

              ## [imports]
import cv2 as cv
import sys
## [imports]
## [imread]
img = cv.imread(cv.samples.findFile("starry_night.jpg"))
## [imread]
## [empty]
if img is None:

            

Reported by Pylint.

              ## [imports]
import cv2 as cv
import sys
## [imports]
## [imread]
img = cv.imread(cv.samples.findFile("starry_night.jpg"))
## [imread]
## [empty]
if img is None:

            

Reported by Pylint.

              os.environ['CI_BUILD_NUMBER'] = '2021.2.0-opencv_winpack_dldt'

cmake_vars['ENABLE_V10_SERIALIZE'] = 'ON'

            

Reported by Pylint.

              os.environ['CI_BUILD_NUMBER'] = '2021.2.0-opencv_winpack_dldt'

cmake_vars['ENABLE_V10_SERIALIZE'] = 'ON'

            

Reported by Pylint.

              os.environ['CI_BUILD_NUMBER'] = '2021.2.0-opencv_winpack_dldt'

cmake_vars['ENABLE_V10_SERIALIZE'] = 'ON'

            

Reported by Pylint.

                  public static void main (String[] args) {

        //! [hello_world]
        System.out.println ("Hello World!");
        //! [hello_world]
    }
}

            

Reported by PMD.

              public class Documentation {

    public static void main (String[] args) {

        //! [hello_world]
        System.out.println ("Hello World!");
        //! [hello_world]
    }
}

            

Reported by PMD.

              os.environ['CI_BUILD_NUMBER'] = '2021.4.0-opencv_winpack_dldt'

            

Reported by Pylint.

              os.environ['CI_BUILD_NUMBER'] = '2021.4.0-opencv_winpack_dldt'

            

Reported by Pylint.

              import cv2 as cv
import numpy as np

img = cv.imread(cv.samples.findFile('sudoku.png'))
gray = cv.cvtColor(img,cv.COLOR_BGR2GRAY)
edges = cv.Canny(gray,50,150,apertureSize = 3)

lines = cv.HoughLines(edges,1,np.pi/180,200)
for line in lines:

            

Reported by Pylint.

              import cv2 as cv
import numpy as np

img = cv.imread(cv.samples.findFile('sudoku.png'))
gray = cv.cvtColor(img,cv.COLOR_BGR2GRAY)
edges = cv.Canny(gray,50,150,apertureSize = 3)

lines = cv.HoughLines(edges,1,np.pi/180,200)
for line in lines:

            

Reported by Pylint.

              Rect cv::selectROI(InputArray img, bool showCrosshair, bool fromCenter)
{
    ROISelector selector;
    return selector.select("ROI selector", img.getMat(), showCrosshair, fromCenter);
}

Rect cv::selectROI(const String& windowName, InputArray img, bool showCrosshair, bool fromCenter)
{
    ROISelector selector;

            

Reported by Cppcheck.

              Rect cv::selectROI(const String& windowName, InputArray img, bool showCrosshair, bool fromCenter)
{
    ROISelector selector;
    return selector.select(windowName, img.getMat(), showCrosshair, fromCenter);
}

void cv::selectROIs(const String& windowName, InputArray img,
                             std::vector<Rect>& boundingBox, bool showCrosshair, bool fromCenter)
{

            

Reported by Cppcheck.

                    if(total-pos == 0) /* we need more space! */
      {
        total += TBRS_BSZ;
        p = (char*)THRealloc(p, total);
      }
      if (p == NULL)
        THError("read error: failed to allocate buffer");
      pos += fread(p+pos, 1, total-pos, dfself->handle);
      if (pos < total) /* eof? */

            

Reported by Cppcheck.

                    if(total-pos <= 1) /* we can only write '\0' in there! */
      {
        total += TBRS_BSZ;
        p = (char*)THRealloc(p, total);
      }
      if (p == NULL)
        THError("read error: failed to allocate buffer");
      if (fgets(p+pos, total-pos, dfself->handle) == NULL) /* eof? */
      {

            

Reported by Cppcheck.

                      && !defined HAVE_WIN32UI \
        && !defined HAVE_COCOA \
    )
TEST(Highgui_GUI, DISABLED_regression)
#else
TEST(Highgui_GUI, regression)
#endif
{
    const std::string window_name("opencv_highgui_test_window");

            

Reported by Cppcheck.

                  )
TEST(Highgui_GUI, DISABLED_regression)
#else
TEST(Highgui_GUI, regression)
#endif
{
    const std::string window_name("opencv_highgui_test_window");
    const cv::Size image_size(800, 600);


            

Reported by Cppcheck.