php 将图片转换为ASCII码的完整示例
内容摘要
这篇文章主要为大家详细介绍了php 将图片转换为ASCII码的完整示例,具有一定的参考价值,可以用来参考一下。
对此感兴趣的朋友,看看idc笔记做的技术笔记。经测试代码如下:
/**
对此感兴趣的朋友,看看idc笔记做的技术笔记。经测试代码如下:
/**
文章正文
这篇文章主要为大家详细介绍了php 将图片转换为ASCII码的完整示例,具有一定的参考价值,可以用来参考一下。
对此感兴趣的朋友,看看idc笔记做的技术笔记。经测试代码如下:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | <code class = "php" > /** * 将图片转换为ASCII码 * * @param * @arrange (www.idcnote.com) **/ // 打开一幅图像 $file_name = 'd:\ascii_dora.png' ; $chars = "$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:,\"^`'. " ; function getimgchars( $color_tran , $chars ){ $length = strlen ( $chars ); $alpha = $color_tran [ 'alpha' ]; $r = $color_tran [ 'red' ]; $g = $color_tran [ 'green' ]; $b = $color_tran [ 'blue' ]; $gray = intval (0.2126 * $r + 0.7152 * $g + 0.0722 * $b ); if ( $gray ==0){ return '.' ; } if ( $gray <196){ $unit = (256.0 + 1)/ $length ; return $chars [ intval ( $gray / $unit )]; } return " " ; } function color_img( $color_tran , $chars ){ $length = strlen ( $chars ); $alpha = $color_tran [ 'alpha' ]; $r = $color_tran [ 'red' ]; $g = $color_tran [ 'green' ]; $b = $color_tran [ 'blue' ]; $gray = intval (0.2126 * $r + 0.7152 * $g + 0.0722 * $b ); $rand =rand (0, $length -1); $color = "rgb(" . $r . "," . $g . "," . $b . ")" ; $char = $chars [ $rand ]; return '<span style="color:' . $color . '" >' . $char . "</span>" ;; } function resize_img( $file_name , $chars , $flage =true){ //header('Content-Type: image/jpeg'); list( $width , $height , $type ) = getimagesize ( $file_name ); $fun = 'imagecreatefrom' . image_type_to_extension( $type , false); if ( $type ==3){ $flage =false; } $fun ( $file_name ); $new_height =100; $percent = $height / $new_height ; $new_width = $width / $percent ; $image_p = imagecreatetruecolor( $new_width , $new_height ); $image = $fun ( $file_name ); imagecopyresampled( $image_p , $image , 0, 0, 0, 0, $new_width , $new_height , $width , $height ); if ( $flage ){ return $image_p ; } else { return $image ; } } $im =resize_img( $file_name , $chars ); $width =imagesx( $im ); $height =imagesy( $im ); $back_text = "" ; for ( $i =1; $i <= $height ; $i ++){ for ( $j =1; $j <= $width ; $j ++){ $color_index = imagecolorat( $im , $j -1, $i -1); $color_tran = imagecolorsforindex( $im , $color_index ); $back_text .=color_img( $color_tran , $chars ,false); } $back_text .= "<br/>" ; } echo "<pre>" ; echo $back_text ; echo "</pre>" ; //file_put_contents('1.txt',$back_text);</code> |
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