image-processing Questions
3
Solved
I'm trying to gain some experience with automatic text recognition and i'm using the package tesseract to perform ocr on some images (i.e. some screenshots I took).
To improve the performance of ...
Declan asked 31/1, 2018 at 22:34
4
Solved
I'm trying to set a new color value to some pixel into a cv::Mat image my code is below:
Mat image = img;
for(int y=0;y<img.rows;y++)
{
for(int x=0;x<img.cols;x++)
{
Vec3b color = imag...
Dizen asked 11/4, 2014 at 0:33
12
Solved
Here is my code:
protected void SaveMyImage_Click(object sender, EventArgs e)
{
string imageUrl = Hidden1.Value;
string saveLocation = Server.MapPath("~/PictureUploads/whatever2.png") ;
Htt...
Waterloo asked 23/3, 2011 at 2:25
3
We are working on an app that detects feet and then puts a 3d model of shoes on them — a kind of shoe AR try-on experience. We are working on Java Android. Is there any library or framework that do...
Tinner asked 5/3, 2020 at 9:58
3
Solved
How can I find multiple objects of one type on one image.
I use ORB feature finder and brute force matcher (opencv = 3.2.0).
My source code:
import numpy as np
import cv2
from matplotlib import p...
Inelegant asked 21/3, 2017 at 21:8
2
Solved
I was reading this paper "Self-Invertible 2D Log-Gabor Wavelets" it defines 2D log gabor filter as such:
The paper also states that the filter only covers one side of the frequency space and sh...
Topdrawer asked 2/8, 2015 at 16:35
6
Solved
Is there an Edge Detection Method that performs significantly better than the Canny Edge Detector ??
Bodkin asked 27/2, 2014 at 9:59
2
Solved
I have these three pictures from a SEM Microscope. One is the actual picture whilst the other two just indicated the presence of specific elements (Aluminium and Silicon) on the sample.
I'd like to...
Predestinate asked 13/11, 2023 at 16:18
4
Solved
I'm using tesseract on a project and want to know the best image input type for tesseract to give the best output. Is Binary&TIFF the best input or there's something else?
Precessional asked 17/4, 2012 at 14:17
6
i am fetching data from tmdb api .But the image doesn't load so i open the image in the new tab .then it shows
"url" parameter is valid but upstream response is invalid
so how to resolve...
Funkhouser asked 24/5, 2021 at 16:0
8
Solved
Following the javadocs, I have tried to scale a BufferedImage without success here is my code:
BufferedImage image = MatrixToImageWriter.getBufferedImage(encoded);
Graphics2D grph = image.createGr...
Broth asked 18/11, 2010 at 14:59
1
In Block Mean Value Based Image Perceptual Hashing Bian Yang proposed a hashing method which says:
The first perceptual hashing function is based on the mean
a) Normalize the original image into ...
Eutectoid asked 17/1, 2013 at 11:15
2
Solved
I'm trying to warp a frame from view1 to view2 using ground truth depth map, pose information, and camera matrix. I've been able to remove most of the for-loops and vectorize it, except one for-loo...
Inquisitive asked 27/11, 2020 at 3:33
4
On a node server I would like to save uploaded datauri data as an image. To do this I've tried decoding the content of this png-
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAACCAIAAAFlEcHbA...
Parceling asked 12/4, 2016 at 22:14
5
The x-derivative Sobel looks that way:
-1 0 +1
-2 0 +2
-1 0 +1
Lets say there are two samples of my image which look like that (0=black, 1=white):
0 0 1 1 0 0
0 0 1 & 1 0 0
0 0 1 1 0 0
I...
Raleighraley asked 9/4, 2013 at 2:6
2
Is it possible to automatically extract tiles from comics, with an existing tool like ImageMagick or should I code a tool myself?
I have seen answers using ImageMagick (Using imagemagick how can i ...
Mertiemerton asked 7/9, 2020 at 8:55
4
Solved
I'm writing a HttpHandler in C# which serves resized images and blah blah blah... No troubles, we have millions of handlers to use as reference.
The problem is that I have pictures of my users tak...
Chromatology asked 10/9, 2011 at 0:12
4
Solved
Please look at this github page. I want to generate heat maps in this way using Python PIL,open cv or matplotlib library. Can somebody help me figure it out?
I could create a heat map for my netw...
Debose asked 3/9, 2017 at 6:30
12
l have a set of images of different sizes (45,50,3), (69,34,3), (34,98,3). l want to add padding to these images as follows:
Take the max width and length of the whole images then put the image in...
Extracanonical asked 13/4, 2017 at 11:34
5
Solved
I'm currently, in C#, trying to figure out a way of finding a specific pattern in a large image, a screenshot actually. A 100% match is needed, so the problem is pretty straight forward.
Test mate...
Collected asked 2/3, 2011 at 18:44
3
Solved
I have done a bit of digging and i havn't been able to find any feasible way of adding watermarks to my 1000+ images automatically. Is this possible with irfanview?? What im looking for is just som...
Rasp asked 4/4, 2011 at 0:19
7
Solved
I am looking for how to resample a numpy array representing image data at a new size, preferably having a choice of the interpolation method (nearest, bilinear, etc.). I know there is
scipy.misc.i...
Schwing asked 5/11, 2012 at 23:56
4
Solved
I'm trying to download 16-bit image data from a server and push it into a WebGL texture without browser plug-ins. texImage2d will work with: ImageData, HTMLImageElement, HTMLCanvasElement, or HTMLV...
Pamalapamela asked 20/6, 2011 at 15:34
15
Solved
I've been using tesseract to convert documents into text. The quality of the documents ranges wildly, and I'm looking for tips on what sort of image processing might improve the results. I've notic...
Bordelon asked 28/2, 2012 at 10:12
5
Solved
I am making a tkiner application and that shows a user a page with some basic information and a picture before allowing them to click a button to view live Bitcoin price data. However, when I added...
Adria asked 27/7, 2016 at 2:11
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