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Tooling
0
votes
1
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56
views
Is it possible to train and run a small AI model on a Raspberry Pi 5 to solve text-based CAPTCHAs?
I’m trying to understand whether it’s actually feasible to train and run a small AI model on a Raspberry Pi 5 (16 GB RAM) that can solve simple text-based CAPTCHAs, the kind that contain a few letters ...
Best practices
1
vote
3
replies
128
views
Is there a way to remove the gray background from the image and just to keep the rainbow
rainbow diffraction patternI have this image that i try to process and want to keep only the visible rainbows and have the background black instead of this grayish color. Is it possible?
What I tried ...
-1
votes
1
answer
87
views
ImportError: cannot import name 'skeletonize_3d' from 'skimage.morphology'
I am trying to use the skeletonize_3d function in my code but it kept giving the same error. I tried to install the latest version of scikit-image-0.25.2, Then also the error persist. I want to use ...
0
votes
1
answer
48
views
Texture analysis image Matlab [closed]
I'm analyzing the texture of cell nuclei in fluorescence microscopy images. I’ve attached two example nuclei: one that is less bright but has strong texture — full of aggregates or "granular" patterns ...
0
votes
1
answer
71
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Having trouble adjusting Gaussian blur strength and understanding 1D Gaussian kernel generation
I’m implementing a Gaussian filter, but I’m struggling with a few parts of the process. Here’s my code so far:
def convolve(img, kernel):
#Get properties
row, column = img.shape
diff = ...
5
votes
1
answer
147
views
Rotating an image, how to fix "Index Error: image index out of range"?
I'm attempting to rotate an image in python by copying each individual pixel into a new blank image, (I know, probably not the best way to do it but this is what I have the theoretical knowledge basis ...
Tooling
0
votes
2
replies
83
views
How to remove colors from image keeping black, white and gray
PaddleSharp is used to find orientation and get text form image below:
using Mat imgSrc = Mat.FromImageData(image);
PaddleRotationDetector detector = new(RotationDetectionModel....
0
votes
0
answers
42
views
gdal2tiles: alpha value flattened
I have a tif image(RGBA) with following stats for alpha channel:
Band 4 Block=829x2 Type=Byte, ColorInterp=Alpha
Min=1.000 Max=255.000
Minimum=1.000, Maximum=255.000, Mean=202.508, StdDev=46.463
...
1
vote
0
answers
122
views
How to fix this python code to count duplicate sample in the images?
I want to count samples in the image and measure the length of each sample as I show below. But I am facing a big problem that when sample is overlapping it cannot make an accurate count, for example ...
0
votes
0
answers
84
views
Crop Inner Black Square in QR Find Pattern
I'm doing an image processing inside the QR code finder patter. The problem is I can't perfectly crop the inner black square inside finder pattern. It's always have some white space around the black ...
-1
votes
1
answer
36
views
Pretrained ESRGAN (.pb) gives reddish or purple image — is this a preprocessing issue or model issue?
I'm trying to use a pretrained ESRGAN model that I downloaded in .pb format.
The model runs without errors, but the output image has a noticeable reddish/purple tint instead of the correct colors.
...
-1
votes
0
answers
53
views
Local intensity normalization
I am working on a data augmentation pipeline for stroke lesions MRIs. The pipeline aims at pasting lesions from sick slices to healthy slices. In order to do so, I need to adjust the intensities of ...
0
votes
0
answers
49
views
raster image with missing no-data information rendering with no-data parts in qgis
I have a raster image. I run 'gdalinfo -stats' command for it, and I get:
Band 1 Block=256x256 Type=Float32, ColorInterp=Gray
Description = NDVI
Min=-0.768 Max=0.859
Minimum=-0.768, Maximum=0....
2
votes
0
answers
62
views
How to get rid of no-data pixels in tif,png
I have a gis image file in tif format which I convert to png based tiles using gdal.
gdalinfo command for tif file shows:
Band 1 Block=1652x2 Type=Byte, ColorInterp=Gray
Min=1.000 Max=255.000
...
7
votes
0
answers
221
views
Why should images not be cylindrically warped before homography estimation in an image stitching pipeline?
I am working on an image stitching pipeline for video feeds but am still missing some key insights. I am for example using Szeliski's Image Alignment and Stitching: A Tutorial for a general ...