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You are here: Home » Guetzli : A New JPEG Encoder For Higher Compression

By Abhishek Ghosh March 27, 2017 9:31 am Updated on March 27, 2017

Guetzli : A New JPEG Encoder For Higher Compression

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Google’s new algorithm promises to reduce the size of JPEG images by 35% without losing quality
Guetzli uses the JPEG format. So, softwares which can currently read standard JPEGs will also be able to read Guetzli JPEGs without any other modification. Guetzli Is A New JPEG Encoder For Higher Compression Developed By Google. Released free software generates ~35% smaller images than libjpeg. We are not going in to in depth technical details about the technology as readers can read the official Google blog with visual examples :

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https://research.googleblog.com/2017/03/announcing-guetzli-new-open-source-jpeg.html

Guetzli is an algorithm very similar to Zopfli, which is another project also developed by Mountain View but for the compression of PNG and gzip file format.

Guetzli uses a large amount of memory, around 300MB of memory per 1 megapixel of the input image and a significant amount of CPU time – about 1 minute of CPU per 1 megapixel of input image.

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Guetzli - A New JPEG Encoder For Higher Compression

 

Guetzli : A New JPEG Encoder For Higher Compression

 

As developer, you will be interested to check the Github project and try :

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https://github.com/google/guetzli

On Mac, unless you want the build by hand, with Homebrew you can easily install by running the command :

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brew install guetzli

which will return this output :

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==> Installing dependencies for guetzli: libpng
==> Installing guetzli dependency: libpng
==> Downloading https://homebrew.bintray.com/bottles/libpng-1.6.29.sierra.bottle
######################################################################## 100.0%
==> Pouring libpng-1.6.29.sierra.bottle.tar.gz
?  /usr/local/Cellar/libpng/1.6.29: 26 files, 1.2MB
==> Installing guetzli
==> Downloading https://homebrew.bintray.com/bottles/guetzli-1.0.1.sierra.bottle
######################################################################## 100.0%
==> Pouring guetzli-1.0.1.sierra.bottle.tar.gz
?  /usr/local/Cellar/guetzli/1.0.1: 5 files, 229.2KB

Example command to convert image is :

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guetzli [--quality Q] [--verbose] original.png output.jpg

There is no manual entry for guetzli. As example, I ran :

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guetzli --quality 85 --verbose 14.jpg 14guetzli.jpg

which returned this output :

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riginal Out[ 158254] BA[100.00%] D[0.0000] Score[158254.0000] (*)
Iter  1: f111111 quantization matrix:
  1  1  1  1  1  1  1  1     1  1  1  2  2  3  3  3     1  1  1  2  2  3  3  3
  1  1  1  1  1  1  1  1     1  1  1  2  3  3  3  3     1  1  1  2  3  3  3  3
  1  1  1  1  1  1  1  2     1  1  1  3  3  3  3  3     1  1  1  3  3  3  3  3
  1  1  1  1  1  1  2  2     2  2  3  3  3  3  3  3     2  2  3  3  3  3  3  3
  1  1  1  1  1  2  2  3     2  3  3  3  3  3  3  3     2  3  3  3  3  3  3  3
  1  1  1  1  2  2  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  1  1  1  2  2  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  1  1  2  2  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
Iter  1: f111111 GQ[ 7.08] Out[ 158254] BA[100.00%] D[0.0000] Score[158254.0000]
Iter  2: f111111 quantization matrix:
  3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
  3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3     3  3  3  3  3  3  3  3
Iter  2: f111111 GQ[22.56] Out[ 137554] BA[100.00%] D[0.3788] Score[137554.0000] (*)
Iter  3: f111111 quantization matrix:
  5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5
  5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5
  5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5
  5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5
  5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5
  5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5
  5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5
  5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5     5  5  5  5  5  5  5  5
Iter  3: f111111 GQ[45.11] Out[ 125457] BA[100.00%] D[0.7007] Score[125457.0000] (*)
Iter  4: f111111 quantization matrix:
  7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7
  7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7
  7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7
  7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7
  7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7
  7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7
  7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7
  7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7     7  7  7  7  7  7  7  7
Iter  4: f111111 GQ[67.67] Out[ 115489] BA[100.00%] D[0.9011] Score[115489.0000] (*)
Iter  5: f111111 quantization matrix:
  9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9
  9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9
  9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9
  9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9
  9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9
  9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9
  9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9     9  9  9  9  9  9  9  9
  9  9  9  9  9  9  9 11     9  9  9  9  9  9  9 11     9  9  9  9  9  9  9 11
Iter  5: f111111 GQ[90.31] Out[ 109336] BA[100.00%] D[1.1391] Score[109336.0000] (*)
Iter  6: f111111 quantization matrix:
11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11
11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11
11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11
11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11
11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11
11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11
11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11    11 11 11 11 11 11 11 11
11 11 11 11 11 11 11 13    11 11 11 11 11 11 11 13    11 11 11 11 11 11 11 13
Iter  6: f111111 GQ[112.87] Out[ 105255] BA[100.00%] D[1.3803] Score[105255.0000] (*)
Iter  7: f111111 quantization matrix:
13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13
13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13
13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13
13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13
13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13
13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13
13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13    13 13 13 13 13 13 13 13
13 13 13 13 13 13 15 15    13 13 13 13 13 13 15 15    13 13 13 13 13 13 15 15
Iter  7: f111111 GQ[135.52] Out[  99795] BA[100.00%] D[1.6504] Score[99795.0000] (*)
Iter  8: f111111 quantization matrix:
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 17    15 15 15 15 15 15 15 17    15 15 15 15 15 15 15 17
15 15 15 15 15 15 17 17    15 15 15 15 15 15 17 17    15 15 15 15 15 15 17 17
Iter  8: f111111 GQ[158.17] Out[  96721] BA[100.00%] D[2.1032] Score[4472752592435967084701623882088448.0000]
Iter  9: f111111 quantization matrix:
13 13 13 13 15 15 15 15    13 13 13 13 15 15 15 15    13 13 13 13 15 15 15 15
13 13 13 15 15 15 15 15    13 13 13 15 15 15 15 15    13 13 13 15 15 15 15 15
13 15 15 15 15 15 15 15    13 15 15 15 15 15 15 15    13 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
Iter  9: f111111 GQ[146.92] Out[  97700] BA[100.00%] D[1.8280] Score[97700.0000] (*)
 
YUV444 selected quantization matrix:
13 13 13 13 15 15 15 15    13 13 13 13 15 15 15 15    13 13 13 13 15 15 15 15
13 13 13 15 15 15 15 15    13 13 13 15 15 15 15 15    13 13 13 15 15 15 15 15
13 15 15 15 15 15 15 15    13 15 15 15 15 15 15 15    13 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15    15 15 15 15 15 15 15 15
Iter 10: f111111(7) up Coeffs[7511/9355] Blocks[1188/1517/34100] ValThres[1.7390] Out[  92821] EstErr[0.17%] BA[100.00%] D[1.8828] Score[92821.0000] (*)
Iter 11: f111111(7) up Coeffs[1844/1844] Blocks[988/988/34100] ValThres[0.1611] Out[  91712] EstErr[0.19%] BA[100.00%] D[1.8829] Score[91712.0000] (*)

Processed image nicely opened in Mac Preview.

Tagged With paperuri:(0ee59c2b833ed8da2904d2ce30274c88) , guetzli , jpeg encoder

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Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

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About This Article

Cite this article as: Abhishek Ghosh, "Guetzli : A New JPEG Encoder For Higher Compression," in The Customize Windows, March 27, 2017, January 29, 2023, https://thecustomizewindows.com/2017/03/guetzli-new-jpeg-encoder-higher-compression/.

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