Do raw images of the same camera have the same size?
I have a project in which I'm trying to balance load between several computing devices. These devices are similar and are supposed to have a camera segment. Device captures an image and then process the image.
For simplicity I want to consider the load as the number of the images waiting on the process queue, but this requires the images to be the same size and have the same specifications.
So my question is that do the images of the same camera have the same size? I know that compressing the images and converting them to .jpeg format, will probably change their size, but how about raw images of the same camera? Do raw images have the same size?
raw
New contributor
add a comment |
I have a project in which I'm trying to balance load between several computing devices. These devices are similar and are supposed to have a camera segment. Device captures an image and then process the image.
For simplicity I want to consider the load as the number of the images waiting on the process queue, but this requires the images to be the same size and have the same specifications.
So my question is that do the images of the same camera have the same size? I know that compressing the images and converting them to .jpeg format, will probably change their size, but how about raw images of the same camera? Do raw images have the same size?
raw
New contributor
add a comment |
I have a project in which I'm trying to balance load between several computing devices. These devices are similar and are supposed to have a camera segment. Device captures an image and then process the image.
For simplicity I want to consider the load as the number of the images waiting on the process queue, but this requires the images to be the same size and have the same specifications.
So my question is that do the images of the same camera have the same size? I know that compressing the images and converting them to .jpeg format, will probably change their size, but how about raw images of the same camera? Do raw images have the same size?
raw
New contributor
I have a project in which I'm trying to balance load between several computing devices. These devices are similar and are supposed to have a camera segment. Device captures an image and then process the image.
For simplicity I want to consider the load as the number of the images waiting on the process queue, but this requires the images to be the same size and have the same specifications.
So my question is that do the images of the same camera have the same size? I know that compressing the images and converting them to .jpeg format, will probably change their size, but how about raw images of the same camera? Do raw images have the same size?
raw
raw
New contributor
New contributor
edited 10 hours ago
Pablo
New contributor
asked 12 hours ago
PabloPablo
112
112
New contributor
New contributor
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
Most digital cameras use lossless compression with raw files. That means the size of raw files from the same camera is somewhat content dependent.
The more detail and different colors a scene contains, the larger the file will be. The more homogeneity a scene contains, the smaller the file will be. The degree of the differences will also be governed by differences in things such as noise in dark areas (noise usually adds to a file size by creating a greater number of unique brightness levels).
add a comment |
A picture being worth a thousand spreadsheet cells, here is an histogram of the size of the RAW files from my camera for 2018 (EOS 70D, 20Mpx). Sizes are in 1000's of K (not really MB).
For the mathematically inclined:
Average: 24538
Median: 24300
Std dev.: 2119
Perhaps you could post the mean and SD? It would be informative
– Azor Ahai
8 hours ago
Added the numbers
– xenoid
7 hours ago
2
Thanks a lot. Would you please clarify about what the x-axis and y-axis show? I'm not sure about what these values exactly are.
– Pablo
7 hours ago
X is size ('24' is for pics between 24000K and 25000K) and Y is the number of pics in the bucket.
– xenoid
7 hours ago
add a comment |
This may be camera-dependent, but for my Canon EOS 7D Mark II, different raw images are definitely not the same size:
# ls -l *.cr2
-rwx------ 1 tew tew 23868042 Jan 21 10:59 20190121105920-6996.cr2
-rwx------ 1 tew tew 24408037 Jan 21 11:07 20190121110757-7002.cr2
-rwx------ 1 tew tew 25928707 Jan 21 11:08 20190121110823-7003.cr2
-rwx------ 1 tew tew 23777211 Jan 21 11:08 20190121110852-7004.cr2
-rwx------ 1 tew tew 25369539 Jan 21 11:09 20190121110922-7005.cr2
-rwx------ 1 tew tew 22675822 Jan 21 11:11 20190121111113-7006.cr2
-rwx------ 1 tew tew 23377077 Jan 21 11:11 20190121111119-7007.cr2
They are all pretty close in size, but there's definitely some variance, which is primarily due to compression of the raw sensor data as well as the metadata and embedded JPG preview image.
Thanks. Since I don't have enough knowledge in photography, I wanted to know if this difference in size is so high that I can't consider load as the number of images? Does "23868042" mean 23.8 Megabyte?
– Pablo
11 hours ago
1
Correct - the 7D II has a 20.2 megapixel sensor, and the resulting raw images are generally between 19 and 36 megabytes, given my current collection of photos...
– twalberg
11 hours ago
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "61"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Pablo is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fphoto.stackexchange.com%2fquestions%2f104508%2fdo-raw-images-of-the-same-camera-have-the-same-size%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
Most digital cameras use lossless compression with raw files. That means the size of raw files from the same camera is somewhat content dependent.
The more detail and different colors a scene contains, the larger the file will be. The more homogeneity a scene contains, the smaller the file will be. The degree of the differences will also be governed by differences in things such as noise in dark areas (noise usually adds to a file size by creating a greater number of unique brightness levels).
add a comment |
Most digital cameras use lossless compression with raw files. That means the size of raw files from the same camera is somewhat content dependent.
The more detail and different colors a scene contains, the larger the file will be. The more homogeneity a scene contains, the smaller the file will be. The degree of the differences will also be governed by differences in things such as noise in dark areas (noise usually adds to a file size by creating a greater number of unique brightness levels).
add a comment |
Most digital cameras use lossless compression with raw files. That means the size of raw files from the same camera is somewhat content dependent.
The more detail and different colors a scene contains, the larger the file will be. The more homogeneity a scene contains, the smaller the file will be. The degree of the differences will also be governed by differences in things such as noise in dark areas (noise usually adds to a file size by creating a greater number of unique brightness levels).
Most digital cameras use lossless compression with raw files. That means the size of raw files from the same camera is somewhat content dependent.
The more detail and different colors a scene contains, the larger the file will be. The more homogeneity a scene contains, the smaller the file will be. The degree of the differences will also be governed by differences in things such as noise in dark areas (noise usually adds to a file size by creating a greater number of unique brightness levels).
answered 11 hours ago
Michael CMichael C
130k7147366
130k7147366
add a comment |
add a comment |
A picture being worth a thousand spreadsheet cells, here is an histogram of the size of the RAW files from my camera for 2018 (EOS 70D, 20Mpx). Sizes are in 1000's of K (not really MB).
For the mathematically inclined:
Average: 24538
Median: 24300
Std dev.: 2119
Perhaps you could post the mean and SD? It would be informative
– Azor Ahai
8 hours ago
Added the numbers
– xenoid
7 hours ago
2
Thanks a lot. Would you please clarify about what the x-axis and y-axis show? I'm not sure about what these values exactly are.
– Pablo
7 hours ago
X is size ('24' is for pics between 24000K and 25000K) and Y is the number of pics in the bucket.
– xenoid
7 hours ago
add a comment |
A picture being worth a thousand spreadsheet cells, here is an histogram of the size of the RAW files from my camera for 2018 (EOS 70D, 20Mpx). Sizes are in 1000's of K (not really MB).
For the mathematically inclined:
Average: 24538
Median: 24300
Std dev.: 2119
Perhaps you could post the mean and SD? It would be informative
– Azor Ahai
8 hours ago
Added the numbers
– xenoid
7 hours ago
2
Thanks a lot. Would you please clarify about what the x-axis and y-axis show? I'm not sure about what these values exactly are.
– Pablo
7 hours ago
X is size ('24' is for pics between 24000K and 25000K) and Y is the number of pics in the bucket.
– xenoid
7 hours ago
add a comment |
A picture being worth a thousand spreadsheet cells, here is an histogram of the size of the RAW files from my camera for 2018 (EOS 70D, 20Mpx). Sizes are in 1000's of K (not really MB).
For the mathematically inclined:
Average: 24538
Median: 24300
Std dev.: 2119
A picture being worth a thousand spreadsheet cells, here is an histogram of the size of the RAW files from my camera for 2018 (EOS 70D, 20Mpx). Sizes are in 1000's of K (not really MB).
For the mathematically inclined:
Average: 24538
Median: 24300
Std dev.: 2119
edited 7 hours ago
answered 8 hours ago
xenoidxenoid
2,911316
2,911316
Perhaps you could post the mean and SD? It would be informative
– Azor Ahai
8 hours ago
Added the numbers
– xenoid
7 hours ago
2
Thanks a lot. Would you please clarify about what the x-axis and y-axis show? I'm not sure about what these values exactly are.
– Pablo
7 hours ago
X is size ('24' is for pics between 24000K and 25000K) and Y is the number of pics in the bucket.
– xenoid
7 hours ago
add a comment |
Perhaps you could post the mean and SD? It would be informative
– Azor Ahai
8 hours ago
Added the numbers
– xenoid
7 hours ago
2
Thanks a lot. Would you please clarify about what the x-axis and y-axis show? I'm not sure about what these values exactly are.
– Pablo
7 hours ago
X is size ('24' is for pics between 24000K and 25000K) and Y is the number of pics in the bucket.
– xenoid
7 hours ago
Perhaps you could post the mean and SD? It would be informative
– Azor Ahai
8 hours ago
Perhaps you could post the mean and SD? It would be informative
– Azor Ahai
8 hours ago
Added the numbers
– xenoid
7 hours ago
Added the numbers
– xenoid
7 hours ago
2
2
Thanks a lot. Would you please clarify about what the x-axis and y-axis show? I'm not sure about what these values exactly are.
– Pablo
7 hours ago
Thanks a lot. Would you please clarify about what the x-axis and y-axis show? I'm not sure about what these values exactly are.
– Pablo
7 hours ago
X is size ('24' is for pics between 24000K and 25000K) and Y is the number of pics in the bucket.
– xenoid
7 hours ago
X is size ('24' is for pics between 24000K and 25000K) and Y is the number of pics in the bucket.
– xenoid
7 hours ago
add a comment |
This may be camera-dependent, but for my Canon EOS 7D Mark II, different raw images are definitely not the same size:
# ls -l *.cr2
-rwx------ 1 tew tew 23868042 Jan 21 10:59 20190121105920-6996.cr2
-rwx------ 1 tew tew 24408037 Jan 21 11:07 20190121110757-7002.cr2
-rwx------ 1 tew tew 25928707 Jan 21 11:08 20190121110823-7003.cr2
-rwx------ 1 tew tew 23777211 Jan 21 11:08 20190121110852-7004.cr2
-rwx------ 1 tew tew 25369539 Jan 21 11:09 20190121110922-7005.cr2
-rwx------ 1 tew tew 22675822 Jan 21 11:11 20190121111113-7006.cr2
-rwx------ 1 tew tew 23377077 Jan 21 11:11 20190121111119-7007.cr2
They are all pretty close in size, but there's definitely some variance, which is primarily due to compression of the raw sensor data as well as the metadata and embedded JPG preview image.
Thanks. Since I don't have enough knowledge in photography, I wanted to know if this difference in size is so high that I can't consider load as the number of images? Does "23868042" mean 23.8 Megabyte?
– Pablo
11 hours ago
1
Correct - the 7D II has a 20.2 megapixel sensor, and the resulting raw images are generally between 19 and 36 megabytes, given my current collection of photos...
– twalberg
11 hours ago
add a comment |
This may be camera-dependent, but for my Canon EOS 7D Mark II, different raw images are definitely not the same size:
# ls -l *.cr2
-rwx------ 1 tew tew 23868042 Jan 21 10:59 20190121105920-6996.cr2
-rwx------ 1 tew tew 24408037 Jan 21 11:07 20190121110757-7002.cr2
-rwx------ 1 tew tew 25928707 Jan 21 11:08 20190121110823-7003.cr2
-rwx------ 1 tew tew 23777211 Jan 21 11:08 20190121110852-7004.cr2
-rwx------ 1 tew tew 25369539 Jan 21 11:09 20190121110922-7005.cr2
-rwx------ 1 tew tew 22675822 Jan 21 11:11 20190121111113-7006.cr2
-rwx------ 1 tew tew 23377077 Jan 21 11:11 20190121111119-7007.cr2
They are all pretty close in size, but there's definitely some variance, which is primarily due to compression of the raw sensor data as well as the metadata and embedded JPG preview image.
Thanks. Since I don't have enough knowledge in photography, I wanted to know if this difference in size is so high that I can't consider load as the number of images? Does "23868042" mean 23.8 Megabyte?
– Pablo
11 hours ago
1
Correct - the 7D II has a 20.2 megapixel sensor, and the resulting raw images are generally between 19 and 36 megabytes, given my current collection of photos...
– twalberg
11 hours ago
add a comment |
This may be camera-dependent, but for my Canon EOS 7D Mark II, different raw images are definitely not the same size:
# ls -l *.cr2
-rwx------ 1 tew tew 23868042 Jan 21 10:59 20190121105920-6996.cr2
-rwx------ 1 tew tew 24408037 Jan 21 11:07 20190121110757-7002.cr2
-rwx------ 1 tew tew 25928707 Jan 21 11:08 20190121110823-7003.cr2
-rwx------ 1 tew tew 23777211 Jan 21 11:08 20190121110852-7004.cr2
-rwx------ 1 tew tew 25369539 Jan 21 11:09 20190121110922-7005.cr2
-rwx------ 1 tew tew 22675822 Jan 21 11:11 20190121111113-7006.cr2
-rwx------ 1 tew tew 23377077 Jan 21 11:11 20190121111119-7007.cr2
They are all pretty close in size, but there's definitely some variance, which is primarily due to compression of the raw sensor data as well as the metadata and embedded JPG preview image.
This may be camera-dependent, but for my Canon EOS 7D Mark II, different raw images are definitely not the same size:
# ls -l *.cr2
-rwx------ 1 tew tew 23868042 Jan 21 10:59 20190121105920-6996.cr2
-rwx------ 1 tew tew 24408037 Jan 21 11:07 20190121110757-7002.cr2
-rwx------ 1 tew tew 25928707 Jan 21 11:08 20190121110823-7003.cr2
-rwx------ 1 tew tew 23777211 Jan 21 11:08 20190121110852-7004.cr2
-rwx------ 1 tew tew 25369539 Jan 21 11:09 20190121110922-7005.cr2
-rwx------ 1 tew tew 22675822 Jan 21 11:11 20190121111113-7006.cr2
-rwx------ 1 tew tew 23377077 Jan 21 11:11 20190121111119-7007.cr2
They are all pretty close in size, but there's definitely some variance, which is primarily due to compression of the raw sensor data as well as the metadata and embedded JPG preview image.
edited 11 hours ago
answered 12 hours ago
twalbergtwalberg
2,660613
2,660613
Thanks. Since I don't have enough knowledge in photography, I wanted to know if this difference in size is so high that I can't consider load as the number of images? Does "23868042" mean 23.8 Megabyte?
– Pablo
11 hours ago
1
Correct - the 7D II has a 20.2 megapixel sensor, and the resulting raw images are generally between 19 and 36 megabytes, given my current collection of photos...
– twalberg
11 hours ago
add a comment |
Thanks. Since I don't have enough knowledge in photography, I wanted to know if this difference in size is so high that I can't consider load as the number of images? Does "23868042" mean 23.8 Megabyte?
– Pablo
11 hours ago
1
Correct - the 7D II has a 20.2 megapixel sensor, and the resulting raw images are generally between 19 and 36 megabytes, given my current collection of photos...
– twalberg
11 hours ago
Thanks. Since I don't have enough knowledge in photography, I wanted to know if this difference in size is so high that I can't consider load as the number of images? Does "23868042" mean 23.8 Megabyte?
– Pablo
11 hours ago
Thanks. Since I don't have enough knowledge in photography, I wanted to know if this difference in size is so high that I can't consider load as the number of images? Does "23868042" mean 23.8 Megabyte?
– Pablo
11 hours ago
1
1
Correct - the 7D II has a 20.2 megapixel sensor, and the resulting raw images are generally between 19 and 36 megabytes, given my current collection of photos...
– twalberg
11 hours ago
Correct - the 7D II has a 20.2 megapixel sensor, and the resulting raw images are generally between 19 and 36 megabytes, given my current collection of photos...
– twalberg
11 hours ago
add a comment |
Pablo is a new contributor. Be nice, and check out our Code of Conduct.
Pablo is a new contributor. Be nice, and check out our Code of Conduct.
Pablo is a new contributor. Be nice, and check out our Code of Conduct.
Pablo is a new contributor. Be nice, and check out our Code of Conduct.
Thanks for contributing an answer to Photography Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fphoto.stackexchange.com%2fquestions%2f104508%2fdo-raw-images-of-the-same-camera-have-the-same-size%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown