feComponentTransfer filter primitive

Filter apply function for each RGBA channel
It allows operations like brightness adjustment, contrast adjustment, color balance or thresholding

Types of function to apply

• identity: C'=C
• linear: C'=slope*C+intercept
• gamma: C'=amplitude*pow(C,exponent)+offset
• table: linear interpolation between values given
• discrete: step function define by given values

Example for no effect:

<feComponentTransfer>
	<feFuncR type='identity' />
	<feFuncG type='linear' slope='1' intercept='0' />
	<feFuncB type='gamma' amplitude='1' exponent='1' offset='0'/>
	<feFuncA type='table' tableValues='1' >
</feComponentTransfer>

Figure 1: Some effects with feComponentTransfer

See examples of effects on a SVG picture as SVG

Tool to modify type, parameters, see result

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