image-processing Questions
2
We are using .NET 7 and SkiaSharp 2.88.3. We have the following controller action which is used to retrieve a .jpg or .png image from disk and scale it according to scaleFactor parameter (1.0 means...
Customhouse asked 4/9, 2023 at 11:38
3
I am new to 3D image processing . I would like to know how to view the dicom series in python. I tried using matplotlib and VTK. In matplot I am not able to view the volume like I view in matlab us...
Respirator asked 8/5, 2019 at 7:24
3
Solved
I'm looking for something like PIL (Python Imaging Library), which sadly doesn't support WebP images.
I'd like to be able to do resizes and crops. Or at least convert to JPEG and then I can work i...
Pochard asked 29/7, 2011 at 16:58
4
I'm trying to figure out a way to more rapidly determine where new construction is happening by comparing annual satellite imagery.
In Google Earth, you can roll back the clock on satellite imager...
Fahey asked 22/9, 2015 at 14:26
3
I am trying to used the seamsless cloning to blend to image together.
but I notice that after using the seamsless clone function the area in the
mask that I want to transfer is shift upward. So I...
Annadiane asked 15/12, 2017 at 6:49
3
Solved
I'm looking for the command and options to convert images (png, jpeg, whatever…) to 1bit/px bitmap image (similar to what happen when in photoshop when you convert it to bitmap). See example below
...
Fluidics asked 7/4, 2013 at 9:43
3
Solved
I am facing a small (big) problem: I want to generate a high resolution speckle pattern and save it as a file that I can import into a laser engraver. Can be PNG, JPEG, PDF, SVG, or TIFF.
My script...
Latinist asked 18/7 at 8:52
4
Solved
To solve Android build issue I need to replace all intermediate alpha pixel with solid pixel (leaving transparent background as is).
How to that with ImageMagick or other-command line tool to all i...
Negligent asked 9/3, 2015 at 7:35
13
Solved
OpenCV's remap() uses a real-valued index grid to sample a grid of values from an image using bilinear interpolation, and returns the grid of samples as a new image.
To be precise, let:
A = an im...
Holography asked 17/1, 2017 at 17:17
16
I'm following some lectures from lynda.com about deep learning using Keras-TensorFlow in a PyCharmCE enviroment and they didn't have this problem.
I get this error:
raise ImportError('Could not im...
Osbourne asked 12/1, 2018 at 11:49
3
I have learnt that it is the randomness of the pixels. But please help with how this randomness is being calculated mathematically. And also how different images will have different entropy.
Clorindaclorinde asked 13/5, 2018 at 5:41
2
Solved
I was making some experimentations with the OpenCV function cv2.warpPerspective when I decided to code it from scratch to better understand its pipeline. Though I followed (hopefully) every theoret...
Oudh asked 25/9, 2022 at 9:44
7
Solved
I'm trying to remove all white or transparent pixels from an image, leaving the actual image (cropped). I've tried a few solutions, but none seem to work. Any suggestions or am I going to spend the...
Tenebrific asked 17/7, 2010 at 11:51
2
I know Image_cropper support predefined crop ratio like
aspectRatioPresets: [
CropAspectRatioPreset.square,
CropAspectRatioPreset.ratio3x2,
CropAspectRatioPreset.original,
CropAspectRatioPrese...
Threesquare asked 3/3, 2021 at 9:22
2
Solved
I want to measure the width of banana by using these 2 lines. First line is the contour around the banana:
and second line is the middle line of banana:
As you can see in the picture I've tri...
Garwin asked 14/9, 2019 at 1:41
14
Solved
I have to write a test case in Python to check whether a jpg image is in color or grayscale. Can anyone please let me know if there is any way to do it with out installing extra libraries like Open...
Mccubbin asked 14/5, 2014 at 17:6
2
Solved
Attached is a picture with curved lines, how can you find the Baseline of the text?
The goal is to get lines like I drew by hand in the following picture:
I tried the following code, but letters ...
Dasilva asked 4/6 at 10:46
2
Solved
Lots of questions have been made about camera2 api and RAW image format, but searching online I have still not found the answer (that's why I am here btw).
I am trying to do some real-time image pr...
Sforza asked 20/6, 2017 at 12:17
5
Solved
I need a way to use Node.js to convert a photo from HEIC format to either jpg or png. I have searched and cannot seem to find anything that works.
Hemoglobin asked 1/2, 2020 at 15:53
6
Solved
I have a webcam video recorder program built with python, opencv and ffmpeg
It works ok except that the color of the video is more blue than the reality. The problem seems to come from color forma...
Priscilapriscilla asked 19/9, 2012 at 21:44
3
Solved
I want to apply a pinch/bulge filter on an image using Python OpenCV. The result should be some kind of this example:
https://pixijs.io/pixi-filters/tools/screenshots/dist/bulge-pinch.gif
I've read...
Firth asked 25/9, 2020 at 15:34
3
Solved
I need to find the regional maxima of an image to obtain foreground markers for watershed segmentation. I see in matlab use the function imregionalmax(). As I don't have the matlab software, I use ...
Hellion asked 22/12, 2014 at 7:13
20
Solved
In [windows server 2012 R2 x64, python 3.7 64x]
pip install opencv-contrib-python
installed without any error .
and when I try to import it
import cv2
show me this error :
Traceback (most r...
Lentil asked 15/9, 2018 at 23:20
4
Solved
For my current ocr project I tried using tesserect using the the python cover pytesseract for converting images into text files. Up till now I was only passing well straight oriented images into my...
Cumber asked 12/3, 2019 at 10:41
5
Solved
In my Flutter app, I have an image and three sliders, one for Hue, one for Saturation, and one for Brightness, and I'm trying to figure out how to use the ColorFiltered widget to make these adjustm...
Rabblerouser asked 2/11, 2020 at 3:54
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