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Remove entire row if sum is lesser than parameter
Try this: >> cell1(find(sum(cell2mat(cell1),2)>10),:)

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Plz tell me how to detect the face of a person in an image.I want matlab code for this.
If you have the Computer Vision System Toolbox, you can use the <http://www.mathworks.com/help/vision/ref/vision.cascadeobjectde...

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Detecting cars and vehicles in an image
If you have a set of labelled training images, you can use the |trainCascadeObjectDetector| function in the Computer Vision Syst...

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how to convert Low Resolution Image To High definition image?
You could look into techniques for super resolution. This is an entire field of research that uses multiple low resolution image...

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Finding pixel locations of labels
You're question could be clearer. We don't know what your end goal is so its difficult to give a good answer. If you just ne...

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bwconncomp returns a variable with 4 fields. one of them is pixelIdxlist. it contains the connected component list.how can we extract each component and show in different images.
You can use the |<http://www.mathworks.com/help/images/ref/regionprops.html regionprops>| function with |<http://www.mathworks.c...

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Manual median filter design
Well if you don't have the Image Processing Toolbox, I'm afraid you won't be able to use |blockproc|. In that case, you would ha...

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how to save the video frame as a image before detecting the next video frame in Face Detection and Tracking Using the KLT Algorithm?
If I understand your question correctly, all you need to do is have a call to |imwrite| inside the loop that writes the video fr...

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Extract HOG Features in Matlab
The |extractHOGFeatures| function was introduced in R2013b. If you have a version of the Computer Vision System Toolbox prior to...

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Cannot figure out why in this code, GPU imdilate takes significantly longer than its CPU counterpart.
Hello Alex, The reason you are noticing a slowdown for the GPU in comparison to the CPU is that the CPU implementation is hig...

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need code for segmentation based on traditional level set with re-initialization method.
Have you tried the <http://www.mathworks.com/help/images/ref/activecontour.html activecontour> function in the Image Processing ...

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I have a binary image. It contains some text part and some non text part. I want to separate text and non-text by using SVM in MATLAB. How can it be done?
You're going to have to read some literature and come up with a suitable approach: <https://www.google.com/search?q=recognize...

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Image processing: finding transfer function of histogram equalization
Or use the two argument syntax for |histeq|. [histIm,T] = histeq(grayImage); plot(T,'b-')

대략 12년 전 | 1

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Draw a marker: problems with PTS parameter
The coordinates may be integer valued, but are not stored in an integer datatype. You can see this if you do the following: ...

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What are Integral Images and how does it speed up processing in SURF?
I can give this a try. Look at Fig. 1 in the paper. For SURF, you convolve your image with the filters on the right (3rd and 4th...

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HELP...How to detect corners using Harris corner detection Algorithm?
Try the syntax with the 'ROI' parameter, something like this: corners = detectHarrisFeatures(Irgb2gray,'ROI',bboxes(1,:)); ...

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Can you please help me to write MATLAB code for eye detection ?
If you have the Computer Vision System Toolbox, you may want to try the vision.CascadeObjectDetector with one of the 'EyePairS...

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How can I get the reference background image for each instance of video
Does this mean you would like the part of the background behind whatever the foreground object is? I don't think getting that is...

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Extracting T features from an Image
Its not clear to me what exactly you want - feature points, an area or something else. But this should get you started nevert...

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how to scan image for specific pattern
Use normalized cross correlation (NCC) provided by the <http://www.mathworks.com/help/images/ref/normxcorr2.html normxcorr2> fun...

대략 12년 전 | 1

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bwboundaries - label each object with different color
The third input to label2rgb is the specification for zero-color, i.e. the background. You can specify a black background by ...

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how to do logarithmic image normalization?
It sounds like you want to just take the log of the image and rescale the range from 0 to 255. This is something you might want ...

대략 12년 전 | 2

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Average width of lines
Another (more complicated and time-consuming) approach to try is the following: 1. Use edge to find edges in the image. Adjus...

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what method should i use to remove the noise?
Try a moving average filter using the smooth function. I think this function is part of the Curve Fitting Toolbox.

12년 초과 전 | 0

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Viola and Jones gives very bad results
There could be a bazillion things wrong...who knows! You're going to have to do some digging here. Here are a couple of thing...

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how to mask an image?
I = im2double(imread('..')); I = rgb2gray(I); J = ones(3)/9; K = conv2(I,J,'same');

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Feature Extraction & Selection from a standard Face Image.
If you have the Computer Vision System Toolbox, you can use any of the following built-in feature extraction methods: detec...

12년 초과 전 | 1

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Changing data type without changing bits
Firstly, 127 is the largest positive number that can be represented with the int8 type, because the first bit is a sign bit. You...

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Filling objects that share a border
Steve Eddins just posted about this. Here's an alternative approach: <http://blogs.mathworks.com/steve/2013/09/05/defining-an...

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Rotate the all center positions in the certain angle
If you have the Image Processing Toolbox, you can use the <http://www.mathworks.com/help/images/ref/affine2dclass.html affine2d>...

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