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# OLGA Jumbo Sanchez

12 total contributions since 2013

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Question

how to create vision contrast test system in MATLAB?
Anyone have any idea how I can create this chart? I am using cosine functions with different frequencies and plotting them over ...

meer dan een jaar ago | 0 answers | 0

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Question

Minimization problem image processing

meer dan een jaar ago | 0 answers | 0

### 0

Question

Happy Holidays Matlab Community. I have a programming question. I am trying to do minimization and need help coding it. funct...

meer dan een jaar ago | 0 answers | 0

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Question

How to write Ply file that includes triangulation?
I have vertices, color, and triangulation of my 3D object. I have tried the pointCloud and pcwrite, but it only allows me to inp...

ongeveer 2 jaar ago | 1 answer | 0

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Question

what is the algorithm imregdemons uses?
I am trying to find a paper/code/power point or some other reference.

meer dan 2 jaar ago | 1 answer | 0

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Question

how can I access/change data in images.geotrans.PolynomialTransformation2D object?
I want to change A and B for the result of images.geotrans.PolynomialTransformation2D, but how can I access these matrices? Or h...

meer dan 2 jaar ago | 1 answer | 0

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Question

How do I get the inverse of matrix D when estimating displacement field(D) that aligns two 2-D images?
Hi, I am using this demo for my project <https://www.mathworks.com/help/images/ref/imregdemons.html?searchHighlight=non%20lin...

meer dan 2 jaar ago | 0 answers | 0

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Question

what is the inverse function of bbox2points?
The bbox2points converts the input rectangle, specified as [x y width height] into a list of four [x y] corner points. I want t...

meer dan 3 jaar ago | 1 answer | 0

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get the number of frame of a video using vision.VideoFileReader and VideoReader
because you set count=0. Remember matlab indexing starts the count at 1.

meer dan 3 jaar ago | 0

Question

crop and rotate area of an image bounded by a rectangle from example "Face Detection and Tracking Using the KLT Algorithm"
I want to be able to crop and rotate an area of interest from an image bounded by a rotated rectangle. The code I am using is th...

bijna 4 jaar ago | 0 answers | 0

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Question

Crop and rotate face from example "Face Detection and Tracking Using the KLT Algorithm"
I want to be able to crop and rotate an area of interest from an image bounded by a rotated rectangle. The code I am using is th...

bijna 4 jaar ago | 1 answer | 0