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Advice
1
vote
4
replies
72
views
How to Detect Objects on a Paper
It is my first year at university, and I am a Computer Engineering student. I would like to develop a program that can detect objects such as buildings, roads, railways, trees, and similar elements ...
-4
votes
0
answers
61
views
How to fix this code so it shows the image with python and cv? [closed]
I am trying to create a code which loads two images, and the use keys to align the two images manually by translating, rotating and zooming the second image relative to the first one. But this code ...
1
vote
0
answers
83
views
Media Foundation: Why does setting MF_MT_DEFAULT_STRIDE on a RGB24 output type prevent vertical flipping?
I am relatively new to Media Foundation and I’m working with a video processing pipeline consisting of several IMFTransform components.The last stage in this pipeline converts an NV12 stream into ...
Best practices
0
votes
7
replies
97
views
How to extract contours for each stacked bag (web sling) in a depth image using OpenCV?
I’m working on an image-processing task in Python/OpenCV and I’m stuck on how to segment each "web sling" (stacked bag group) as an individual contour.
What I’m trying to achieve:
Detect each web ...
Tooling
0
votes
1
replies
91
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
4
replies
163
views
Is there a way to remove the gray background from the image and just to keep the rainbow?
Rainbow diffraction pattern
I 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?
I tried ...
-1
votes
1
answer
202
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 ...
5
votes
1
answer
154
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
100
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
48
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
133
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 ...
-1
votes
1
answer
46
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
vote
0
answers
64
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
64
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
231
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 ...