Questions - OpenCV Q&A Forum

1k

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1

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no

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2013-07-18 09:04:07 -0600 Tim Redfern

fixed point arithmetic

pixel

735

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1

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no

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2013-07-30 03:06:01 -0600 berak

Pixel access through python interface

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1

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no

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2013-08-28 17:06:18 -0600 deiaalencar

Pixels in the region of interest (ROI)

597

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1

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no

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2013-12-05 05:07:01 -0600 bpp

Number of pixels changed per frame compared to frame before?

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1

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no

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2014-02-09 15:15:04 -0600 Abhishek Kumar Annamraju

Pixel resolution required for object detection ?

614

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1

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2014-11-14 04:14:40 -0600 berak

modify pixel of image with 0.01

792

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1

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no

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2015-01-07 04:13:25 -0600 berak

How can i add all 'R' values in the image?

pixel

221

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1

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no

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2017-08-09 04:10:08 -0600 Ziri

How to detect the pixels which colors have been modified ?

pixel
Color

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no

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2015-03-09 06:20:00 -0600 begueradj

Not loosing the quality of pictures saved with cv2.imwrite()

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no

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2015-03-10 16:47:09 -0600 Potato

Is there a way to easily plot pixels?

396

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1

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2016-03-19 10:59:36 -0600 Tetragramm

understanding the idea behind some code snippet

2k

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no

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2015-07-08 07:18:45 -0600 FooBar

find the differences between two images pixel I want to show on the screen with imshow method How can I do

1k

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no

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2015-11-26 06:09:26 -0600 valexor89

get few pixels value of grayscale image with android API

194

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-2

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2015-12-07 20:45:33 -0600 Brandon212

computing FFT at a pixel in image with opencv

5k

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no

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2016-01-14 03:40:43 -0600 kbarni

Why pixels can have float values?

1k

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no

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2016-01-16 18:04:30 -0600 Tetragramm

How to get real world 2D coordinates of rectified pixels?

254

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no

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2016-02-03 20:53:55 -0600 granbywrestler

Reading image

416

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1

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2016-02-04 12:08:58 -0600 goldroses

Obtaining Pixelvalue with various formats

2k

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2016-07-22 05:56:05 -0600 berak

How can I perform arithmetic operations with pixel

3k

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1

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no

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2016-08-27 01:03:17 -0600 berak

Pixel datas in a circular region

pixel

491

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1

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no

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2017-01-09 08:11:07 -0600 berak

Problem setting pixel value

4k

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1

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no

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2017-03-09 05:41:03 -0600 berak

Iterating and printing all pixel values from a Mat image

376

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1

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no

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2017-07-24 05:02:05 -0600 arrfou

Is it possible to apply superpixel algorithm on depth data?

209

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1

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-2

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2017-12-05 14:13:46 -0600 berak

Decomposing an image to several subimages

1k

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1

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1

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2017-12-21 00:54:25 -0600 moHe

Python faster pixel access

216

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1

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no

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2018-01-01 22:34:00 -0600 rezaee

Is there a simple way to see the intensity of each point of an image?

234

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1

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1

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2018-01-08 19:59:16 -0600 sjhalayka

trouble understanding pixel access

443

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1

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no

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2018-02-13 08:52:56 -0600 AcrimoniousMirth

OpenCV Python on RPi, can't seem to iterate through image width [closed]

747

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1

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no

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2018-02-28 03:01:33 -0600 LBerger

How to access alpha value at pixel using Mat.data?

2k

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1

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no

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2018-08-28 14:54:46 -0600 MikeTronix

I have an image with all pixel values 0 i.e black image, i want to access pixels at certain image coordinates more then a 100 and change the value to 1 how can i do this using opencv python and for loops if possible?

91 questions

fixed point arithmetic

Pixel access through python interface

Pixels in the region of interest (ROI)

Number of pixels changed per frame compared to frame before?

Pixel resolution required for object detection ?

modify pixel of image with 0.01

How can i add all 'R' values in the image?

How to detect the pixels which colors have been modified ?

Not loosing the quality of pictures saved with cv2.imwrite()

Is there a way to easily plot pixels?

understanding the idea behind some code snippet

find the differences between two images pixel I want to show on the screen with imshow method How can I do

get few pixels value of grayscale image with android API

computing FFT at a pixel in image with opencv

Why pixels can have float values?

How to get real world 2D coordinates of rectified pixels?

Reading image

Obtaining Pixelvalue with various formats

How can I perform arithmetic operations with pixel

Pixel datas in a circular region

Problem setting pixel value

Iterating and printing all pixel values from a Mat image

Is it possible to apply superpixel algorithm on depth data?

Decomposing an image to several subimages

Python faster pixel access

Is there a simple way to see the intensity of each point of an image?

trouble understanding pixel access

OpenCV Python on RPi, can't seem to iterate through image width [closed]

How to access alpha value at pixel using Mat.data?

I have an image with all pixel values 0 i.e black image, i want to access pixels at certain image coordinates more then a 100 and change the value to 1 how can i do this using opencv python and for loops if possible?

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