Timeline for What online tools exist to compare image noise between different sensor sizes?
Current License: CC BY-SA 3.0
5 events
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| Jul 1, 2017 at 13:32 | comment | added | Michael C | Since the sensor can not physically change the size and number of pixels it is similar to resizing it later. As with many other things, saving the raw data at full resolution will give you much more control later than allowing the camera to make most of the decisions about how the data from the sensor is processed to produce a jpeg. Creating a downsized jpeg from a raw file will help reduce the loss of image quality each time a jpeg is decoded, edited, and re-encoded. | |
| Jul 1, 2017 at 8:03 | comment | added | cpx |
@MichaelClark: When I set the capture resolution in camera, I guess it does the first thing you mentioned resize the entire picture to a lower resolution right and that's same as resizing it later manually? I was thinking that the sensor itself produces 5 MP on lowering resolution to give better quality.
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| Jul 1, 2017 at 4:29 | comment | added | Michael C | @cpx If you resize the entire picture to a lower resolution and display it at the same size it will average out some noise at the cost of resolution. If you crop the 5MP in the center and magnify it to the same display size as the original 20MP image the perception of noise in the crop will increase. | |
| Jun 30, 2017 at 20:53 | comment | added | cpx | Okay, I want to know this since you said the G9XmkII is about the same number of pixels, but spread across an area over five times as large. If I lower the resolution of camera down to 5 MP from 20 MP, will there be a reduction in noise? | |
| Jun 30, 2017 at 17:45 | history | answered | Tom Dibble | CC BY-SA 3.0 |