ghltshubh's profile - activity

doesn't let me answer my own question.

What wrong with the color manipulation? I am doing the erosion example from the OpenCV3 documentation but the color of t

Not getting expected output on morphologically transforming images. I am trying to do top hat morphological transformati

Not getting expected output on morphologically transforming images. I am trying to do top hat morphological transformati

Not getting expected output on morphologically transforming images. I am trying to do top hat morphological transformati

Not getting expected output on morphologically transforming images. I am trying to do top hat morphological transformati

Not getting expected output on morphologically transforming images. I am trying to do top hat morphological transformati

Not getting expected output on morphologically transforming images. I am trying to do top hat morphological transformati

What wrong with the color manipulation? I am doing the erosion example from the OpenCV3 documentation but the color of t

What wrong with the color manipulation? I am doing the erosion example from the OpenCV3 documentation but the color of t

What wrong with the color manipulation? I am doing the erosion example from the OpenCV3 documentation but the color of t

There is some issue with Qt the base rendering library.

The pts1 was different for the actual image than the one given in the example. I checked the points manually in GIMP and

I don't get it what you said. The pts1 do fit on the image where the green dots are.

I don't get it what are you saying. The pts1 do fit on the image where the green dots are.

I am trying perspective transformation example from the documentation but I am getting different result than the example.

import cv2
import matplotlib.pyplot as plt
import numpy as np
img = cv2.imread('sudoku.png')
rows,cols,ch = img.shape
pts1 = np.float32([[56,65],[368,52],[28,387],[389,390]])
pts2 = np.float32([[0,0],[300,0],[0,300],[300,300]])
M = cv2.getPerspectiveTransform(pts1,pts2)
dst = cv2.warpPerspective(img,M,(300,300))
plt.subplot(121),plt.imshow(img),plt.title('Input')
plt.subplot(122),plt.imshow(dst),plt.title('Output')
plt.show()

The result according to the example should look like this(ignore the green lines):

whereas what I got looks like this:

Any ideas what's going on here? I am on macOS 10.13, openCV 3.3.1 and using python 3.6

What's the issue with Perspective Transformation? I am trying perspective transformation example from the documentation

What's the issue with Perspective Transformation? I am trying perspective transformation example from the documentation

What's the issue with Perspective Transformation? I am trying perspective transformation example from the documentation

On windows or macOS?

Oh ok. Thanks.

Why this behavior even when its not required?

so it's not mandatory. right?

so it'd not mandatory. right?

so is it mandatory?

yeah waitKey(10) worked. So correct me if I am wrong, what it does is it holds the loop for that amount of time and allo

yeah waitKey(10) worked. So correct me if I am wrong, what it does is it holds the loop for that amount of time and allo

How to use waitKey() I am writing a program to read images from a folder and transition between them using addWeighted()

It's a known issue in opencv which is still open: here

It's an known issue in opencv which is still open: here

It's an open issue in opencv since 2015: here

OpenCV 3: Why does the UI render incorrectly? 0 down vote favorite I am a new to openCV and trying its examples from doc

OpenCV 3: Why does the UI render incorrectly? 0 down vote favorite I am a new to openCV and trying its examples from doc

OpenCV 3: Why does the UI render incorrectly? 0 down vote favorite I am a new to openCV and trying its examples from doc

Reading video from a video file not working. import cv2 cap = cv2.VideoCapture('vtest.avi') while(cap.isOpened()): re