面部自体脂肪填充 PHP缩略图等比例无损压缩，可填充空白区域补充色

复制代码 代码如下:// 测试 imagezoom('1.jpg', '2.jpg', 400, 300, '#FFFFFF'); /* 等比例无损压缩，可填充补充色 author: 华仔 主持格式： bmp 、jpg 、gif、png param: @srcimage : 要缩小的图片 @dstimage : 要保存的图片 @dst_width: 缩小宽 @dst_height: 缩小高 @backgroundcolor: 补充色 如：#FFFFFF 支持 6位 不支持3位 */ function imagezoom( $srcimage, $dstimage, $dst_width, $dst_height, $backgroundcolor ) { // 中文件名乱码 if ( $srcimage = iconv('UTF-8', 'GBK', $srcimage); $dstimage = iconv('UTF-8', 'GBK', $dstimage); } $dstimg = imagecreatetruecolor( $dst_width, $dst_height ); $color = imagecolorallocate($dstimg , hexdec(substr($backgroundcolor, 1, 2)) , hexdec(substr($backgroundcolor, 3, 2)) , hexdec(substr($backgroundcolor, 5, 2)) ); imagefill($dstimg, 0, 0, $color); if ( !$arr=getimagesize($srcimage) ) { echo "要生成缩略图的文件不存在"; exit; } $src_width = $arr[0]; $src_height = $arr[1]; $srcimg = null; $method = getcreatemethod( $srcimage ); if ( $method ) { eval( '$srcimg = ' . $method . ';' ); } $dst_x = 0; $dst_y = 0; $dst_w = $dst_width; $dst_h = $dst_height; if ( ($dst_width / $dst_height - $src_width / $src_height) > 0 ) { $dst_w = $src_width * ( $dst_height / $src_height ); $dst_x = ( $dst_width - $dst_w ) / 2; } elseif ( ($dst_width / $dst_height - $src_width / $src_height) $dst_h = $src_height * ( $dst_width / $src_width ); $dst_y = ( $dst_height - $dst_h ) / 2; } imagecopyresampled($dstimg, $srcimg, $dst_x , $dst_y, 0, 0, $dst_w, $dst_h, $src_width, $src_height); // 保存格式 $arr = array( 'jpg' => 'imagejpeg' , 'jpeg' => 'imagejpeg' , 'png' => 'imagepng' , 'gif' => 'imagegif' , 'bmp' => 'imagebmp' ); $suffix = strtolower( array_pop(explode('.', $dstimage ) ) ); if (!in_array($suffix, array_keys($arr)) ) { echo "保存的文件名错误"; exit; } else { eval( $arr[$suffix] . '($dstimg, "'.$dstimage.'");' ); } imagejpeg($dstimg, $dstimage); imagedestroy($dstimg); imagedestroy($srcimg); } function getcreatemethod( $file ) { $arr = array( '474946' => "imagecreatefromgif('$file')" , 'FFD8FF' => "imagecreatefromjpeg('$file')" , '424D' => "imagecreatefrombmp('$file')" , '89504E' => "imagecreatefrompng('$file')" ); $fd = fopen( $file, "rb" ); $data = fread( $fd, 3 ); $data = str2hex( $data ); if ( array_key_exists( $data, $arr ) ) { return $arr[$data]; } elseif ( array_key_exists( substr($data, 0, 4), $arr ) ) { return $arr[substr($data, 0, 4)]; } else { return false; } } function str2hex( $str ) { $ret = ""; for( $i = 0; $i $ret .= ord($str[$i]) >= 16 ? strval( dechex( ord($str[$i]) ) ) : '0'. strval( dechex( ord($str[$i]) ) ); } return strtoupper( $ret ); } // BMP 创建函数 function imagecreatefrombmp($filename) { if (! $f1 = fopen($filename,"rb")) return FALSE; $FILE = unpack("vfile_type/Vfile_size/Vreserved/Vbitmap_offset", fread($f1,14)); if ($FILE['file_type'] != 19778) return FALSE; $BMP = unpack('Vheader_size/Vwidth/Vheight/vplanes/vbits_per_pixel'. '/Vcompression/Vsize_bitmap/Vhoriz_resolution'. '/Vvert_resolution/Vcolors_used/Vcolors_important', fread($f1,40)); $BMP['colors'] = pow(2,$BMP['bits_per_pixel']); if ($BMP['size_bitmap'] == 0) $BMP['size_bitmap'] = $FILE['file_size'] - $FILE['bitmap_offset']; $BMP['bytes_per_pixel'] = $BMP['bits_per_pixel']/8; $BMP['bytes_per_pixel2'] = ceil($BMP['bytes_per_pixel']); $BMP['decal'] = ($BMP['width']*$BMP['bytes_per_pixel']/4); $BMP['decal'] -= floor($BMP['width']*$BMP['bytes_per_pixel']/4); $BMP['decal'] = 4-(4*$BMP['decal']); if ($BMP['decal'] == 4) $BMP['decal'] = 0; $PALETTE = array(); if ($BMP['colors'] { $PALETTE = unpack('V'.$BMP['colors'], fread($f1,$BMP['colors']*4)); } $IMG = fread($f1,$BMP['size_bitmap']); $VIDE = chr(0); $res = imagecreatetruecolor($BMP['width'],$BMP['height']); $P = 0; $Y = $BMP['height']-1; while ($Y >= 0) { $X=0; while ($X { if ($BMP['bits_per_pixel'] == 24) $COLOR = unpack("V",substr($IMG,$P,3).$VIDE); elseif ($BMP['bits_per_pixel'] == 16) { $COLOR = unpack("n",substr($IMG,$P,2)); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } elseif ($BMP['bits_per_pixel'] == 8) { $COLOR = unpack("n",$VIDE.substr($IMG,$P,1)); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } elseif ($BMP['bits_per_pixel'] == 4) { $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1)); if (($P*2)%2 == 0) $COLOR[1] = ($COLOR[1] >> 4) ; else $COLOR[1] = ($COLOR[1] & 0x0F); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } elseif ($BMP['bits_per_pixel'] == 1) { $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1)); if (($P*8)%8 == 0) $COLOR[1] = $COLOR[1] >>7; elseif (($P*8)%8 == 1) $COLOR[1] = ($COLOR[1] & 0x40)>>6; elseif (($P*8)%8 == 2) $COLOR[1] = ($COLOR[1] & 0x20)>>5; elseif (($P*8)%8 == 3) $COLOR[1] = ($COLOR[1] & 0x10)>>4; elseif (($P*8)%8 == 4) $COLOR[1] = ($COLOR[1] & 0x8)>>3; elseif (($P*8)%8 == 5) $COLOR[1] = ($COLOR[1] & 0x4)>>2; elseif (($P*8)%8 == 6) $COLOR[1] = ($COLOR[1] & 0x2)>>1; elseif (($P*8)%8 == 7) $COLOR[1] = ($COLOR[1] & 0x1); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } else return FALSE; imagesetpixel($res,$X,$Y,$COLOR[1]); $X++; $P += $BMP['bytes_per_pixel']; } $Y--; $P+=$BMP['decal']; } fclose($f1); return $res; } // BMP 保存函数，function imagebmp ($im, $fn = false) { if (!$im) return false; if ($fn === false) $fn = '$f = fopen ($fn, "w"); if (!$f) return false; $biWidth = imagesx ($im); $biHeight = imagesy ($im); $biBPLine = $biWidth * 3; $biStride = ($biBPLine + 3) & ~3; $biSizeImage = $biStride * $biHeight; $bfOffBits = 54; $bfSize = $bfOffBits + $biSizeImage; fwrite ($f, 'BM', 2); fwrite ($f, pack ('VvvV', $bfSize, 0, 0, $bfOffBits)); fwrite ($f, pack ('VVVvvVVVVVV', 40, $biWidth, $biHeight, 1, 24, 0, $biSizeImage, 0, 0, 0, 0)); $numpad = $biStride - $biBPLine; for ($y = $biHeight - 1; $y >= 0; --$y) { for ($x = 0; $x { $col = imagecolorat ($im, $x, $y); fwrite ($f, pack ('V', $col), 3); } for ($i = 0; $i fwrite ($f, pack ('C', 0)); } fclose ($f); return true; } ?> 以上就介绍了面部自体脂肪填充