Questions - OpenCV Q&A Forum

488

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1

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no

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2016-01-21 23:30:06 -0600 berak

Memory error accessing grayscale pixel data

1k

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1

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no

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2016-01-24 21:33:19 -0600 MartinTarrou

Normalizing Sobel Filter Noise

7k

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1

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-1

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2016-03-11 22:41:00 -0600 gseif

How to capture in GRAYSCALE directly from source

1k

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1

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no

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2016-04-22 12:03:16 -0600 berak

convert the RGB image to a grayscale representation of its redness

284

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no

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no

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2016-05-18 13:51:54 -0600 alinouriz

Accessing Pixel Values of RAW 8 image

4k

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no

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1

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2016-06-09 07:58:10 -0600 pmh4514

[SOLVED] putText - result is always black text [closed]

2k

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1

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no

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2016-08-29 10:08:36 -0600 berak

CV_8UC3 returns grayscale

2k

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no

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1

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2016-09-30 15:27:54 -0600 simbaforrest

Different results between imread as grayscale and cvtColor

3k

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2

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1

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2017-03-21 04:30:12 -0600 pvt.peter

Result of CLAHE is different on 8 and 16 bit

370

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no

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1

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2017-07-02 06:00:41 -0600 Cole

Better character isolation

1k

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1

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-1

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2017-07-13 05:11:52 -0600 alkasm

How do i convert a Grayscale video to a Tensor?

2k

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no

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3

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2018-04-16 04:41:37 -0600 theaniolad

ConnectedComponents-like function for grayscale image

5k

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2

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no

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2018-05-05 14:15:21 -0600 pedro_lafuente

VideoCapture with grayscale camera

269

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1

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no

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2018-07-30 22:45:44 -0600 Stéphane Charette

How are RGB images converted to greyscale?

453

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1

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1

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2018-08-14 10:51:49 -0600 berak

Is it possible to create a BGR image from predefined 3 (1-channel) image

521

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1

answer

no

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2018-11-21 23:38:14 -0600 berak

why load an image with input 0 gives a different result that converting the same image with input 1 to grey scale with opencv crtcolor method?

grayscale

4k

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no

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no

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2019-01-29 15:58:05 -0600 wildwolf13

Open CV Error: Assertion failed (scn ==2 && depth == CV_8U) in cvtColor

271

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no

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no

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2019-02-21 05:29:37 -0600 berak

grayscale image pixel-based detect object

1k

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no

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no

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2019-04-13 10:09:14 -0600 A85

Failing to read pixel of grayscale image as float

603

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1

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no

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2019-04-27 15:23:55 -0600 Tetragramm

Why at() return 3 values for a grayscale image

grayscale

5k

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no

answers

1

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2020-02-24 21:58:55 -0600 charlie

51 questions

Memory error accessing grayscale pixel data

Normalizing Sobel Filter Noise

How to capture in GRAYSCALE directly from source

convert the RGB image to a grayscale representation of its redness

Accessing Pixel Values of RAW 8 image

[SOLVED] putText - result is always black text [closed]

CV_8UC3 returns grayscale

Different results between imread as grayscale and cvtColor

Result of CLAHE is different on 8 and 16 bit

Better character isolation

How do i convert a Grayscale video to a Tensor?

ConnectedComponents-like function for grayscale image

VideoCapture with grayscale camera

How are RGB images converted to greyscale?

Is it possible to create a BGR image from predefined 3 (1-channel) image

why load an image with input 0 gives a different result that converting the same image with input 1 to grey scale with opencv crtcolor method?

Open CV Error: Assertion failed (scn ==2 && depth == CV_8U) in cvtColor

grayscale image pixel-based detect object

Failing to read pixel of grayscale image as float

Why at() return 3 values for a grayscale image

Create 2 channel image - grayscale and alpha

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