File:Gaussian blur before downscaling.png
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Gaussian_blur_before_downscaling.png (128 × 128 pixels, file size: 4 KB, MIME type: image/png)
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Summary
| Description |
English: Two images of the Flag of the Commonwealth of Nations, reduced from 2048×1024 to 128×64. The images were resized with cubic interpolation, but a Gaussian blur with σ = 32px was applied to the bottom image before downscaling. The blur makes the image less sharp, but prevents the formation of aliasing artifacts. (In the actual flag, the spears are straight, radially directed, and do not touch each other.) |
| Date | |
| Source | I took :Image:Flag of the Commonwealth of Nations.svg, rendered it to a 2048×1024 raster with the GIMP, and processed it as described above. |
| Author | Army1987 at en.wikipedia |
Licensing
|
This work has been released into the public domain by its author, Army1987 at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Army1987 grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Original upload log
Transferred from en.wikipedia to Commons by Ronhjones.
The original description page was here. All following user names refer to en.wikipedia.
Upload date | User | Bytes | Dimensions | Comment
- 2008-06-15 12:03 (UTC) | Army1987 | 9116 (bytes) | 128×128 | {{Information |Description=Two images of the [[Flag of the Commonwealth of Nations]], reduced from 2048×1024 to 128×64. The images were resized with cubic interpolation, but a [[Gaussian blur]] with ''σ'' = 32px was applied to the bottom image before d
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:44, 31 May 2023 | | 128 × 128 (4 KB) | Phreneticc | Reduced file weight with FileOptimizer in lossless compression mode. |
| 23:44, 13 January 2012 |  | 128 × 128 (9 KB) | Ronhjones | (Original text) : {{Information |Description=Two images of the Flag of the Commonwealth of Nations, reduced from 2048×1024 to 128×64. The images were resized with cubic interpolation, but a Gaussian blur with ''σ'' = 32px was applied to the bot |
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