CODEWITHSUNDEEP
pythonimageopencvimage-processingopencv3.0
Parag Jain
Parag Jain

Reputation: 662

How to convert any image to CV_32FC1 in Python

I have code in C++ for converting an image to "CV_32FC1" but I want to do same thing in Python. Here is my C++ code.

img.convertTo(img, CV_32FC1);

How can I do same thing in Python?

Upvotes: 2

Views: 5153

Answers (2)

Japi Sandhu
Japi Sandhu

Reputation: 67

https://docs.opencv.org/3.4/d8/d01/group__imgproc__color__conversions.html#gga4e0972be5de079fed4e3a10e24ef5ef0a353a4b8db9040165db4dacb5bcefb6ea

You can use the function

 cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

Upvotes: -1

ZdaR
ZdaR

Reputation: 22954

Python uses numpy to manage the image pixel data, you can do something like this in numpy to change the data type of a matrix:

img = img.astype("float32")

As added by @HansHirse in the comments, this operation will just change the data type of the matrix, but if you want to change the scale of pixel values then you should use img = img.astype("float32")/255, to convert all the pixel values in range 0.0 - 1.0

Upvotes: 4

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