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2014-12-09 13:52:45 -0600 | marked best answer | Extract connected pixels using the idea of Breadth-first search I am trying to collect a set of pixels between two pixels:start and end point from a skeleton image . So the idea is : I start on a position in the image. I put that position in a list. Then in a loop,
Then start the loop again. I have develop a piece of code but the loop ends after adding four or five pixels ,before arriving to the end point |
2014-12-09 13:52:40 -0600 | marked best answer | how to extract Edge lists ? I am working on binary image .I have extracted skeleton and the only junction point in the image. Now I have to extract a list of points : -from the top-left of the image to the junction point (nearly) in the middle . -from the junction point to the top- right point in the image . Any idea to do it ? |
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2013-07-03 13:36:56 -0600 | answered a question | Inv function See here the documentation please post your code so we can help you .I didn't get the problem . |
2013-07-02 06:46:40 -0600 | answered a question | Character Slant Correction |
2013-07-01 07:20:50 -0600 | answered a question | CvBox2D cvMinAreaRect2 points ? Have a look at the documentaion |
2013-06-25 14:50:49 -0600 | received badge | ● Nice Answer (source) |
2013-06-20 12:13:22 -0600 | received badge | ● Nice Answer (source) |
2013-06-19 23:18:45 -0600 | received badge | ● Nice Answer (source) |
2013-06-03 14:22:15 -0600 | commented question | Error running my project yes I try your code and everything is ok |
2013-06-03 10:54:39 -0600 | commented question | Error running my project May be there is a problem with the type of the image that your code reads , have a look here http://opencv.willowgarage.com/documentation/cpp/reading_and_writing_images_and_video.html#cv-imread |
2013-06-03 10:51:16 -0600 | commented question | Error running my project please post your code |
2013-06-03 10:47:10 -0600 | commented question | Cat function of Matlab I didn't understand rpad{i,:} |
2013-06-02 10:43:16 -0600 | received badge | ● Teacher (source) |
2013-06-02 02:54:41 -0600 | answered a question | My Open CV code doesnt do anything when i execute it May be you forget to put waitkey(0); |
2013-06-02 02:38:19 -0600 | answered a question | Accessing pixel and coordinate of an image using OpenCV |
2013-06-02 02:27:50 -0600 | commented answer | where should I put my image ? You can create a folder "projectsOpencv " in your desktop , put the file containing your code "example.cpp" and your image "0.jpg"in the same folder "projectsOpencv" . In this case , char filename[]="0.jpg"; do not modify your code . |
2013-06-01 12:38:04 -0600 | answered a question | where should I put my image ? There is two methods for calling a file :
C:\projects\myProject\img.png
img.png Do not forget to put the path between " " . In the above example, the absolute path contains the full path to the file and not just the file as seen in the non absolute path. For example , you can put your code source test.cpp and your image in a folder ,name it for example opencv and try the non absolute path . |
2013-05-30 14:41:40 -0600 | commented answer | Is this line code correct? hey , with pleasure :) |
2013-05-29 15:02:04 -0600 | commented question | How to calculate the Affine Moment Invariants of a binary image thanks a lot , I feel a little bit confused about Affine Moment Invariants . |
2013-05-29 14:50:39 -0600 | commented question | How to calculate the Affine Moment Invariants of a binary image Can we calculate it for each pixel ? |
2013-05-29 14:42:53 -0600 | commented question | How to calculate the Affine Moment Invariants of a binary image I have a question please , we calculate the affine moment invariant for all the image or for each pixel ? |
2013-05-28 12:40:51 -0600 | answered a question | from MAT to BIDIMENSIONAL ARRAY A mat object is 2 D or 3 D array , if we consider that your mat object is 2 D so it is obligatory an array with dimension 2 , you can access to each element in your object mat "im" using for example : |
2013-05-28 12:30:14 -0600 | answered a question | Is this line code correct? There are two possible cases of multiply for matrices . Matrix multiplication is where two matrices are multiplied directly. This operation multiplies matrix A of size [a x b] with matrix B of size [b x c] to produce matrix C of size [a x c]. In OpenCV it is achieved using the simple * operator: C = A * B Element-wise multiplication is where each pixel (element) in the output matrix is formed by multiplying that pixel (element) in matrix A by its corresponding entry in matrix B. The input matrices should be the same size, and the output will be the same size as well. This is achieved using the mul() function: output = A.mul(B); |
2013-05-28 12:18:12 -0600 | commented question | Is this line code correct? imfft is the name of Mat object ? |
2013-05-28 04:48:02 -0600 | answered a question | converting from iplimage to cvmat and vise versa To convert from Mat to IplImage : For example to use ipl_img you will write , To convert from IplImage to Mat : |
2013-05-27 13:04:05 -0600 | received badge | ● Student (source) |
2013-05-27 12:33:59 -0600 | asked a question | How to perform changes in both sub-image and original image ? I have limited a region of interest in a binary image with a rectangle . I have convert this rectangle to a new matrix . now whenever I perform an operation in this matrix there is no change in the original image , but what I want is to have a change in the original image . |
2013-05-25 08:33:58 -0600 | commented answer | Build graph from an image Many thanks , I got the idea how we can build a graph from an image :) |
2013-05-25 02:47:14 -0600 | marked best answer | Build graph from an image I have a binary image and I am trying to build undirected graph from this image in order to apply minimum spanning tree . My idea is from this paper http://cs.brown.edu/~pff/papers/seg-ijcv.pdf I have no idea how to build the graph . |