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From: Jeff Breidenbach <breidenbach@gmail.com>
Date: Mon, 3 May 2021 12:16:15 -0700
Message-ID: <CAHjiUbrVATL1CLrfHGHbqBZAMPF8cphHJ7SSMYpNXdEW-3ZSPA@mail.gmail.com>
To: Larry Bank <laurencebank@gmail.com>
Subject: Re: [Tiff] SIMD optimizations
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> How many people use well compressed LZW images and would care about a
2-20x speedup?

My main interest in TIFF is CCITT Group 4 fax encoding. This is
already very fast, but it is
hard to say no to additional speed. The popularity of libjpeg-turbo is a
testament to that. Also,
respectfully, speeding up libpng would have vastly more impact than
speeding up libtiff.

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<div dir=3D"ltr"><div dir=3D"ltr"><div>&gt; How many people use well compre=
ssed LZW images and would care about a 2-20x speedup?<br></div><div><br></d=
iv><div>My main interest in TIFF is CCITT Group 4 fax encoding. This is alr=
eady=C2=A0very fast, but it is</div><div>hard to say no to additional speed=
. The popularity of libjpeg-turbo is a testament to that. Also,</div><div>r=
espectfully, speeding up libpng would have vastly more impact than speeding=
 up libtiff.</div></div></div>

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