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Merge "man/cwebp.1: wording, change the date" into 0.2.0
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man/cwebp.1
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man/cwebp.1
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.\" Hey, EMACS: -*- nroff -*-
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.\" Hey, EMACS: -*- nroff -*-
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.TH CWEBP 1 "January 24, 2012"
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.TH CWEBP 1 "July 19, 2012"
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.SH NAME
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.SH NAME
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cwebp \- compress an image file to a WebP file
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cwebp \- compress an image file to a WebP file
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.SH SYNOPSIS
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.SH SYNOPSIS
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@ -43,7 +43,7 @@ values result in a lossy compression. The default is 100.
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Specify the strength of the deblocking filter, between 0 (no filtering)
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Specify the strength of the deblocking filter, between 0 (no filtering)
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and 100 (maximum filtering). A value of 0 will turn off any filtering.
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and 100 (maximum filtering). A value of 0 will turn off any filtering.
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Higher value will increase the strength of the filtering process applied
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Higher value will increase the strength of the filtering process applied
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after decoding the picture. The higher the smoother the picture will
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after decoding the picture. The higher the value the smoother the picture will
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appear. Typical values are usually in the range of 20 to 50.
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appear. Typical values are usually in the range of 20 to 50.
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.TP
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.TP
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.B \-preset string
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.B \-preset string
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@ -63,12 +63,12 @@ and where else to better transfer these bits. The possible range goes from
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.TP
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.TP
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.B \-m int
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.B \-m int
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Specify the compression method to use. This parameter controls the
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Specify the compression method to use. This parameter controls the
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tradeoff between encoding speed and the compressed file size and quality.
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trade off between encoding speed and the compressed file size and quality.
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Possible values range from 0 to 6. Default value is 4.
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Possible values range from 0 to 6. Default value is 4.
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When higher values are used, the encoder will spend more time inspecting
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When higher values are used, the encoder will spend more time inspecting
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additional encoding possibilities and decide on the quality gain.
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additional encoding possibilities and decide on the quality gain.
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Lower value can result is faster processing time at the expense of
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Lower value can result is faster processing time at the expense of
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larger filesize and lower compression quality.
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larger file size and lower compression quality.
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.TP
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.TP
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.B \-af
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.B \-af
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Turns auto-filter on. This algorithm will spend additional time optimizing
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Turns auto-filter on. This algorithm will spend additional time optimizing
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@ -143,7 +143,7 @@ and has currently no effect.
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.B \-alpha_filter string
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.B \-alpha_filter string
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Specify the predictive filtering method for the alpha plane. One of 'none',
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Specify the predictive filtering method for the alpha plane. One of 'none',
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\&'fast' or 'best', in increasing complexity and slowness order. Default is
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\&'fast' or 'best', in increasing complexity and slowness order. Default is
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\&'fast'. Internally, alpha filtering is performed using four possible
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\&'fast'. Internally, alpha filtering is performed using four possible
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predictions (none, horizontal, vertical, gradient). The 'best' mode will try
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predictions (none, horizontal, vertical, gradient). The 'best' mode will try
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each mode in turn and pick the one which gives the smaller size. The 'fast'
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each mode in turn and pick the one which gives the smaller size. The 'fast'
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mode will just try to form an a-priori guess without testing all modes.
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mode will just try to form an a-priori guess without testing all modes.
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