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python Programming Glossary: contoursHow to remove convexity defects in a Sudoku square? http://stackoverflow.com/questions/10196198/how-to-remove-convexity-defects-in-a-sudoku-square OpenCV 2.3.1. Below is what I did Read the image Find the contours Select the one with maximum area and also somewhat equivalent..
What is different between all these OpenCV Python interfaces? http://stackoverflow.com/questions/10417108/what-is-different-between-all-these-opencv-python-interfaces need special functions like cvSetImageROI . If you find contours cvSeq structures are returned which is not so good to work with..
Books for OpenCV and Python? [closed] http://stackoverflow.com/questions/10677317/books-for-opencv-and-python OpenCV Python contain some examples for color tracking contours etc. Uses old cv interface 3 https github.com jessicaaustin.. tree master opencv tutorial contain codes for thresholding contours etc. 4 http pythonimage.blogspot.in generally python image processing..
Adding water flow arrows to Matplotlib Contour Plot http://stackoverflow.com/questions/16529892/adding-water-flow-arrows-to-matplotlib-contour-plot color '0.8' density 2 # Contour gridded head observations contours ax.contour xi yi zi linewidths 2 ax.clabel contours # Plot well.. contours ax.contour xi yi zi linewidths 2 ax.clabel contours # Plot well locations ax.plot x y 'ko' plt.show share improve..
Plotting implicit equations in 3d http://stackoverflow.com/questions/4680525/plotting-implicit-equations-in-3d A # grid on which the contour is plotted for z in B # plot contours in the XY plane X Y A1 A2 Z fn X Y z cset ax.contour X Y Z z.. for this contour for this value of z for y in B # plot contours in the XZ plane X Z A1 A2 Y fn X y Z cset ax.contour X Y y Z.. X y Z cset ax.contour X Y y Z y zdir 'y' for x in B # plot contours in the YZ plane Y Z A1 A2 X fn x Y Z cset ax.contour X x Y Z..
Polar contour plot in Matplotlib http://stackoverflow.com/questions/6548556/polar-contour-plot-in-matplotlib values value 1D array of values that I want to use for the contours These are all 1D arrays that align properly eg theta radius..
Finding shapes in an image using opencv http://stackoverflow.com/questions/8785664/finding-shapes-in-an-image-using-opencv sizes scale and locations. My current approach Detect contours For each contour calculate the maximum bounding box Match each..
Python OpenCV - Find black areas in a binary image http://stackoverflow.com/questions/9056646/python-opencv-find-black-areas-in-a-binary-image sure WeightedCentroid wouldn't be that hard either. # grab contours cs _ cv2.findContours BW.astype 'uint8' mode cv2.RETR_LIST ..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python ################# Now finding Contours ################### contours hierarchy cv2.findContours thresh cv2.RETR_LIST cv2.CHAIN_APPROX_SIMPLE.. 0 100 responses keys i for i in range 48 58 for cnt in contours if cv2.contourArea cnt 50 x y w h cv2.boundingRect cnt if h.. thresh cv2.adaptiveThreshold gray 255 1 1 11 2 contours hierarchy cv2.findContours thresh cv2.RETR_LIST cv2.CHAIN_APPROX_SIMPLE..
3D Contour plot from data using Mayavi / Python http://stackoverflow.com/questions/9419451/3d-contour-plot-from-data-using-mayavi-python to display our data from mayavi.mlab import contour3d F contours 8 opacity .2 This gives a nice lumpy Gaussian. Take a look at..
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