public function writeImageGamma($gamma = 45455) 
    {
        $this->buffer->startChunk("gAMA");
        $this->buffer->writeUInt32BE($gamma);
        $this->buffer->endChunk();
    }
public function writeImageGamma($gamma = 45455) 
    {
        $this->buffer->startChunk("gAMA");
        $this->buffer->writeUInt32BE($gamma);
        $this->buffer->endChunk();
    }
public function writeImageGamma ( $ gamma = 45455 ) { $ this -> buffer -> startChunk ( "gAMA" ) ; $ this -> buffer -> writeUInt32BE ( $ gamma ) ; $ this -> buffer -> endChunk ( ) ; }
Writes a gAMA chunk to the png data stream.

@param int $gamma Gamma value.
Writes a gAMA chunk to the png data stream .