# Questions tagged [image]

This tag covers signal processing where input is an image, such as a photograph or video frame and the output could be an improved or altered image, parameters related to the image or information about features within the image.

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23 views

### How to convert bytes to video using python? [closed]

I made a python program that basically sends a tcp signal to a gateway from the drone and receives another signal, but that signal comes in bytes and I don't know how to convert it into an array or ...
21 views

### Zero Padding in image reconstruction

I need to zero-pad the image for a better reconstruction but according to my project details, I will be given a Fourier-transformed image so can someone tell me how to pad the image in such a ...
19 views

### Applying which kernel or technique contours are detected in image? [closed]

How contours are calculated from image ?? How calculating contours is different from calculating the edge detection ??
19 views

### Fourier coefficients of images?

For a continuous function $f$, it is well-known that the decay of $f$'s Fourier coefficients $\hat f_n$ is related to the differentiability of $f$. Some examples: for a smooth periodic function $f$, ...
8 views

### Python, Is there a way to find the properties of a subregion within a larger image region?

The goal: I have images with particles that I need to find the area of. Each particle also has four to five sub-regions that I need to know the area of. Think of a bunch of stripped shirts in a ...
32 views

### Solving for a convolved function inside an integral

I have an imaging system that produces a signal in a pixel, in part, by responding to incident radiance $L(\lambda)$ that passes through a filter with transmission $T(\lambda)$. Lumping all the other ...
20 views

### MATLAB: Prepare an RGB image for digit and letter recognition

I need a Matlab function that prepares an image for digit and letter recognition. What I need now is to convert the original RGB image to a binary image that every pixel in it is white except the ...
29 views

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### Matching Coordinates between two images

I am using images and corresponding lidar values for depth estimation CNN. I have RGB images. Corresponding to each RGB images, there is another image representing a subsets of pixels and distances to ...
200 views

### Strong (0,0) pixel among an otherwise normal cross correlation peak

I am working on an imagery registration problem via cross-correlation and am seeing a weird phenomena sometimes. First, I am pre-processing each image by subtracting the mean image brightness from ...
98 views

### Generating spectrogram for band-pass filtered wav file python

I have some .wav files of heart sounds. I want to apply band-pass filter [20Hx 100 Hz]. Then generating PCG images size of 560x420 pixels and RGB format. How could i do this? Any help will be highly ...
72 views

### Combining two images with different resolutions?

I am attempting to combine two radar images, each of which is a 3-dimensional cube with a range dimension, an azimuth angle dimension, and an elevation angle dimension. One image has high azimuth ...