# OJ27

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**Content Feed**

Question

Multi-input networks do not support validation

I was able to train a multi-input network. However, Now that I want to validate the network, I get this error message. Error us...

2 years ago | 1 answer | 0

### 1

answerQuestion

Multi-input imagedatastore

I am trying to train a network with N inputs to perform binary classification. Each image is multispectral (more than 3 channels...

2 years ago | 1 answer | 0

### 1

answerQuestion

multi-spectral images with imageDatastore

I have images in different directories that I would like to concatenate before passing them to a CNN. I have two class labels se...

2 years ago | 0 answers | 0

### 0

answersQuestion

ResNet50 on multi-spectral image segmentation

Is there a way to use any pretrain network (not necessarily Resnet) to segment multispectral images in MATLAB? deeplabv3plusLa...

2 years ago | 1 answer | 0

### 1

answerQuestion

augmentedImageDatastore center crop does not return datastore with labels

I have an image datastore which includes images and labels. Before feeding to the network, I want to crop the images at the cent...

2 years ago | 2 answers | 0

### 2

answersimage labelling for background

So I solved this by only labeling the desired areas in my images with the class cat and the background was left without a label....

2 years ago | 0

Question

crop images in ImageDatastore for semantic segmentation

I have ImageDataStore and PixelDataStore objects related to a dataset of 200 labeled images. Since the resolution is large, I wa...

2 years ago | 1 answer | 0

### 1

answerQuestion

Why are the results from conv2d and multiplication in Fourier Domain not the same?

I want to convolve two images of the same size. One of them is the input image and the second is the linear representation of th...

3 years ago | 1 answer | 0

### 1

answerQuestion

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 ...

4 years ago | 0 answers | 0

### 0

answersQuestion

Minimization problem image processing

Hello, I'm trying to minimize this function (by p): <</matlabcentral/answers/uploaded_files/99667/Capture.PNG>> where...

4 years ago | 0 answers | 0

### 0

answersQuestion

iterating function, how to return a value and return to function

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

4 years ago | 0 answers | 0

### 0

answersQuestion

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...

5 years ago | 2 answers | 0

### 2

answersQuestion

what is the algorithm imregdemons uses?

I am trying to find a paper/code/power point or some other reference.

5 years ago | 1 answer | 0

### 1

answerQuestion

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...

5 years ago | 1 answer | 0

### 1

answerQuestion

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...

5 years ago | 0 answers | 0

### 0

answersQuestion

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...

6 years ago | 1 answer | 0

### 1

answerget 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.

6 years 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...

6 years ago | 0 answers | 0

### 0

answersQuestion

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...

6 years ago | 1 answer | 0

### 1

answerCan I use simultaneously the analog input and output of my NI MyDAQ card in session-based?

I am having the same problem. I am using MATLAB R2012b 64 bits. Is there any way to fix this? I tried the example online

9 years ago | 0