Interpretation of color histogram
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I'm reading a paper about image processing and came across this color histogram:
image. But I'm not sure how to interpet it. The 3 different curves are for red, green and blue. But what is on the X and Y-axis? My guess would be X-axis going from 0 to 255 for the 'intensity' of the color and Y-axis the amount of pixels in the image that have this intensity. Could anyone confirm this or correct me if I'm wrong?
image-processing
asked Nov 10 at 17:44
user406406406
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I'm reading a paper about image processing and came across this color histogram:
image. But I'm not sure how to interpet it. The 3 different curves are for red, green and blue. But what is on the X and Y-axis? My guess would be X-axis going from 0 to 255 for the 'intensity' of the color and Y-axis the amount of pixels in the image that have this intensity. Could anyone confirm this or correct me if I'm wrong?
image-processing
asked Nov 10 at 17:44
user406406406
82
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user406406406 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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Not an expert here but your interpretation sounds about right.
– XDS
Nov 10 at 19:43
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I'm reading a paper about image processing and came across this color histogram:
image. But I'm not sure how to interpet it. The 3 different curves are for red, green and blue. But what is on the X and Y-axis? My guess would be X-axis going from 0 to 255 for the 'intensity' of the color and Y-axis the amount of pixels in the image that have this intensity. Could anyone confirm this or correct me if I'm wrong?
image-processing
asked Nov 10 at 17:44
user406406406
82
New contributor
user406406406 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm reading a paper about image processing and came across this color histogram:
image. But I'm not sure how to interpet it. The 3 different curves are for red, green and blue. But what is on the X and Y-axis? My guess would be X-axis going from 0 to 255 for the 'intensity' of the color and Y-axis the amount of pixels in the image that have this intensity. Could anyone confirm this or correct me if I'm wrong?
image-processing
image-processing
asked Nov 10 at 17:44
user406406406
82
New contributor
user406406406 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked Nov 10 at 17:44
user406406406
82
New contributor
user406406406 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked Nov 10 at 17:44
user406406406
82
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asked Nov 10 at 17:44
user406406406
82
asked Nov 10 at 17:44
user406406406
82
82
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user406406406 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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user406406406 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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Not an expert here but your interpretation sounds about right.
– XDS
Nov 10 at 19:43
add a comment |
Not an expert here but your interpretation sounds about right.
– XDS
Nov 10 at 19:43
Not an expert here but your interpretation sounds about right.
– XDS
Nov 10 at 19:43
Not an expert here but your interpretation sounds about right.
– XDS
Nov 10 at 19:43
add a comment |
1 Answer
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If I know well, someone please correct me if I am wrong, the X axis represents the possible values of a color from either one of the RGB channels (a value in the [0-255] interval), and the Y axis represents the number of pixels having that value.
answered Nov 10 at 17:49
Rakirnd
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This corresponds perfectly with the interpretation that is given of this histogram. Thanks.
– user406406406
Nov 10 at 17:51
And the counts are normalized for the peak in this particular histogram: the peaks are made the same, even though the actual peak counts of pixels may differ by quite a bit. Otherwise, the pixel count scales would be same for all colors, and the peaks would not appear at same height usually.
– Kuba Ober
Nov 10 at 17:51
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
If I know well, someone please correct me if I am wrong, the X axis represents the possible values of a color from either one of the RGB channels (a value in the [0-255] interval), and the Y axis represents the number of pixels having that value.
answered Nov 10 at 17:49
Rakirnd
713
New contributor
Rakirnd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This corresponds perfectly with the interpretation that is given of this histogram. Thanks.
– user406406406
Nov 10 at 17:51
And the counts are normalized for the peak in this particular histogram: the peaks are made the same, even though the actual peak counts of pixels may differ by quite a bit. Otherwise, the pixel count scales would be same for all colors, and the peaks would not appear at same height usually.
– Kuba Ober
Nov 10 at 17:51
add a comment |
up vote
2
down vote
accepted
If I know well, someone please correct me if I am wrong, the X axis represents the possible values of a color from either one of the RGB channels (a value in the [0-255] interval), and the Y axis represents the number of pixels having that value.
answered Nov 10 at 17:49
Rakirnd
713
New contributor
Rakirnd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This corresponds perfectly with the interpretation that is given of this histogram. Thanks.
– user406406406
Nov 10 at 17:51
And the counts are normalized for the peak in this particular histogram: the peaks are made the same, even though the actual peak counts of pixels may differ by quite a bit. Otherwise, the pixel count scales would be same for all colors, and the peaks would not appear at same height usually.
– Kuba Ober
Nov 10 at 17:51
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
If I know well, someone please correct me if I am wrong, the X axis represents the possible values of a color from either one of the RGB channels (a value in the [0-255] interval), and the Y axis represents the number of pixels having that value.
answered Nov 10 at 17:49
Rakirnd
713
New contributor
Rakirnd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
If I know well, someone please correct me if I am wrong, the X axis represents the possible values of a color from either one of the RGB channels (a value in the [0-255] interval), and the Y axis represents the number of pixels having that value.
answered Nov 10 at 17:49
Rakirnd
713
New contributor
Rakirnd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered Nov 10 at 17:49
Rakirnd
713
New contributor
Rakirnd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered Nov 10 at 17:49
Rakirnd
713
answered Nov 10 at 17:49
Rakirnd
713
713
New contributor
Rakirnd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Rakirnd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Rakirnd is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This corresponds perfectly with the interpretation that is given of this histogram. Thanks.
– user406406406
Nov 10 at 17:51
And the counts are normalized for the peak in this particular histogram: the peaks are made the same, even though the actual peak counts of pixels may differ by quite a bit. Otherwise, the pixel count scales would be same for all colors, and the peaks would not appear at same height usually.
– Kuba Ober
Nov 10 at 17:51
add a comment |
This corresponds perfectly with the interpretation that is given of this histogram. Thanks.
– user406406406
Nov 10 at 17:51
And the counts are normalized for the peak in this particular histogram: the peaks are made the same, even though the actual peak counts of pixels may differ by quite a bit. Otherwise, the pixel count scales would be same for all colors, and the peaks would not appear at same height usually.
– Kuba Ober
Nov 10 at 17:51
This corresponds perfectly with the interpretation that is given of this histogram. Thanks.
– user406406406
Nov 10 at 17:51
This corresponds perfectly with the interpretation that is given of this histogram. Thanks.
– user406406406
Nov 10 at 17:51
And the counts are normalized for the peak in this particular histogram: the peaks are made the same, even though the actual peak counts of pixels may differ by quite a bit. Otherwise, the pixel count scales would be same for all colors, and the peaks would not appear at same height usually.
– Kuba Ober
Nov 10 at 17:51
And the counts are normalized for the peak in this particular histogram: the peaks are made the same, even though the actual peak counts of pixels may differ by quite a bit. Otherwise, the pixel count scales would be same for all colors, and the peaks would not appear at same height usually.
– Kuba Ober
Nov 10 at 17:51
add a comment |
user406406406 is a new contributor. Be nice, and check out our Code of Conduct.
user406406406 is a new contributor. Be nice, and check out our Code of Conduct.
user406406406 is a new contributor. Be nice, and check out our Code of Conduct.
user406406406 is a new contributor. Be nice, and check out our Code of Conduct.
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Not an expert here but your interpretation sounds about right.
– XDS
Nov 10 at 19:43