computer-vision Questions

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I am trying to remove horizontal lines from my daughter's drawings, but can't get it quite right. The approach I am following is creating a mask with horizontal lines (https://stackoverflow.com/a/5...
Zamudio asked 10/3, 2022 at 14:38

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I am loading an image into python e.g. image = cv2.imread("new_image.jpg") How can i acccess the RGB values of image?
Recognizee asked 29/8, 2012 at 22:24

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I have tried to connect my Jetson Nano with TTL UART cable using minicom. When I typed sudo minicom It showed an error minicom throwing an error minicom: cannot open /dev/modem: No such file or di...
Chesson asked 14/10, 2020 at 4:3

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I am using libSVM. Say my feature values are in the following format: instance1 : f11, f12, f13, f14 instance2 : f21, f22, f23, f24 instance3 : f31, f32, f33, f34 instance4 : f41, f42, f43, f...
Saxton asked 15/3, 2013 at 15:36

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I have an image that is 6400 × 3200, while my screen is 1280 x 800. Therefore, the image needs to be resized for display only. I am using Python and OpenCV 2.4.9. According to OpenCV Documentation,...
Murielmurielle asked 3/2, 2016 at 15:14

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I have this image of a statue. I'm trying to find the top, bottom, left, and right most points on the statue. Is there a way to measure the edge of each side to determine the outer most point on...
Michaeu asked 26/6, 2019 at 22:20

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It seems my implementation is incorrect and not sure what exactly I'm doing wrong: Here is the histogram of my image: So the threshold should be around 170 ish? I'm getting the threshold as 130....
Overload asked 11/1, 2018 at 18:2

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The problem is when I use the TensorFlow 2.0.0 and Python 3.7 to train the gan written in TensorFlow 1.0.0 and Python 2.7 I found that Conv2DCustomBackpropInputOp only supports NHWC. Is this the ca...
Jelly asked 17/11, 2019 at 2:9

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I have a cube-shaped point cloud whose x, y, & z-coordinates range from -1.0 to 1.0 unit. #include <pcl/ModelCoefficients.h> #include <pcl/common/common.h> #include <pcl/filters/...

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I am using Pytorch. I got this RuntimeError while evaluating a model. Any idea how to solve this?
Bouilli asked 22/3, 2021 at 16:50

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So I have been using this code,. I am trying to generate the raw mask of the images from COCO dataset. dataDir='G:' dataType='train2014' annFile='{}/annotations/instances_{}.json'.format(dataDir,...

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I am trying to replicate the work described here (https://www.analyticsvidhya.com/blog/2019/02/building-crowd-counting-model-python/) in google colab. Unfortunately at first it was working but afte...
Reparable asked 26/11, 2019 at 11:29

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I am trying to find image in an image. I do this for desktop automation. At this moment, I'm trying to be fast, not precise. As such, I have decided to match similar image solely based on the same ...
Caundra asked 27/1, 2015 at 2:56

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I was going through YOLOv4 paper which often uses the term one & two stage object detection. I was unable to understand what's the difference between the two types of object detectors. I am ass...

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I need a simple and fast way to compare two images for similarity. I.e. I want to get a high value if they contain exactly the same thing but may have some slightly different background and may be ...
Authoritarian asked 16/11, 2010 at 16:31

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I am trying to find horizontal and vertical lines from an image which came from a "document". The documents are scanned pages from contracts and so the lines look like what you would see in a table...
Antependium asked 29/8, 2011 at 7:1

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When using Python, the openCV function cv.HaarDetectObjects() returns an object found along with a detection score. If I use the opencv2 function instead, cv2.CascadeClassifier.detectMultiS...
Holcman asked 29/11, 2012 at 7:58

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I'm working on a project using Python(3.7) and OpenCV in which I have an Image(captured using the camera) of a document with a QR code placed on it. This QR code has 6 variables respectively as: ...
Indifference asked 23/2, 2020 at 5:15

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What is anisotropic scaling? And how is it achieved w.r.t image processing and computer vision? I understand that it is some form of non-uniform scaling as Wikipedia puts it, but I still don't get...
Ostosis asked 23/4, 2017 at 22:33

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I've converted a Keras model for use with OpenVino. The original Keras model used sigmoid to return scores ranging from 0 to 1 for binary classification. After converting the model for use with Ope...

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I was trying to implement a pytorch framework on CNN. I'm sure the code is right because it's from a tutorial and it works when I ran it on Jupyter Notebook on GoogleDrive. But when I tried to lo...
Corbel asked 6/8, 2021 at 10:4

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I'm looking for a way to remove isolated white pixels from a binary image using OpenCV. A similar question (OpenCV get rid of isolated pixels) has a bunch of "answers" but none seem to work for me....
Samale asked 10/9, 2017 at 17:52

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I need to use Pytesseract to extract text from this picture: and the code: from PIL import Image, ImageEnhance, ImageFilter import pytesseract path = 'pic.gif' img = Image.open(path) img = img.con...
Anuran asked 10/6, 2016 at 10:8

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My task is to find coordinates of lines (startX, startY, endX, endY) and rectangles (4 lines). Here is input file: I use the next code: img = cv.imread(image_src) gray = cv.cvtColor(img,cv.COLOR_BG...
Stroud asked 6/8, 2017 at 10:31

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I'm trying to detect and fine-locate some objects in images from contours. The contours that I get often include some noise (maybe form the background, I don't know). The objects should look simila...
Underclassman asked 5/2, 2016 at 14:51

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