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PHP根据图片边缘自动抠图并添加图片与文字再图片上

落花生 2023-05-15 0 条评论 195 个足迹 日常记录,PHP语言

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简介

程序包含以下内容

  1. 根据图片的白色或者PNG透明,自动识别区域图片有效内容,并进行抠图
  2. 根据图片进行裁剪成有效图片内容大小
  3. 读取图片宽度、高度
  4. 在图片上添加图片
  5. 在图片上添加文字
  6. 创建成新的图片进行生成新的图片

代码

<?php
namespace app\api\controller;

use think\Db;
use think\Controller;

class GenerateImg
{
    /**
     * @name create() 生成图片
     * @author ux
     * @mtime 2023-05-12
     * @param proimg_param 底部图片
     * @param watermark_param 水印图片
     * @param proname 产品名称
     * @param nametop 产品名称距图标-上边距
     * @param nameleft 产品名称距图标-左边距
     * @param top 图标距地图-上边距
     * @param left 图标距地图-左边距
     * @param rotate 旋转角度
     * @param imgname 输出图片名称
     * @return array
     */
    public function create($proimg_param, $watermark_param, $proname, $nametop, $nameleft, $top, $left, $rotate, $imgname)
    {
        # 合成图标+产品名称
        $icon_path = ".".$watermark_param;
        $new_icon = new \Imagick($icon_path);
        $new_icon_width = $new_icon->getImageWidth();
        $new_icon_height = $new_icon->getImageHeight();
        # 制作-图标-获取画布宽度
        $new_icon_max_width = config('generate_icon_width');
        $new_icon_max_height = config('generate_icon_height');
        if ($new_icon_width > $new_icon_max_width) {
            $new_width = $new_icon_max_width;
            $new_height = intval(($new_width / $new_icon_width) * $new_icon_height);
        } elseif ($new_icon_height > $new_icon_max_height) {
            $new_height = $new_icon_max_height;
            $new_width = intval(($new_height / $new_icon_height) * $new_icon_width);
        } else {
            $new_width = $new_icon_width;
            $new_height = $new_icon_height;
        }

        $new_icon->scaleImage($new_width, $new_height);
        $new_icon->setImageAlphaChannel(\Imagick::ALPHACHANNEL_SET);
        $new_icon->opaquePaintImage('#000000', '#FFFFFF', 0, false);
        $new_compound_img = new \Imagick();
        $new_compound_img->newImage($new_icon_max_width, $new_icon_max_width, '#ffffff00');
        $new_compound_img->compositeImage($new_icon, \Imagick::COMPOSITE_OVER, 0, 0);
        $new_compound_img->setImageFormat('png');

        # 生成图片
        $generate = $new_compound_img->writeImage('./public/uploads/generate/'.$imgname.'.png');

        # 返回
        if (!$generate) {
            return array('code'=>400, 'path'=>'');
        }
        return array('code'=>200, 'path'=>'/public/uploads/generate/'.$imgname.'.png?'.time());
    }

    /**
     * @name picimg() 图片边缘合成
     * @author ux
     * @mtime 2023-04-28
     * @param original_img      处理图片
     * @param logo              添加处理LOGO
     * @param topbottom         是否有左右脚
     * @param text              添加文字-标题
     * @param text              添加文字-描述
     * @param border_num        添加边的图片数量
     * @param rotate            倾斜像素点
     * @param margin            合并边距
     * @param return_width      返回-图片宽度
     * @param return_height     返回-图片高度
     * @param icon_top          上边单个图片
     * @param icon_right        右边单个图片
     * @param icon_bottom       下边单个图片
     * @param icon_left         左边单个图片
     * @return image
     */
    public function picimg($original_img, $logo='', $topbottom=true, $title='', $text='', $border_num='6', $rotate='2', $margin='20', $return_width='1200', $return_height='800', $icon_top='', $icon_right='', $icon_bottom='', $icon_left='')
    {
        # 边线图片参数
        $icon_top = $icon_top ? ".".$icon_top : "./public/uploads/picimg/icon_top.png";
        $icon_right = $icon_right ? ".".$icon_right : "./public/uploads/picimg/icon_right.png";
        $icon_bottom = $icon_bottom ? ".".$icon_bottom : "./public/uploads/picimg/icon_bottom.png";
        $icon_left = $icon_left ? ".".$icon_left : "./public/uploads/picimg/icon_left.png";

        # 处理的图片
        $original_img = ".".$original_img;

        # 内容
        $logo = $logo ? ".".$logo : "./public/uploads/picimg/icon_top.png";
        $title = $title ? $title : " ";
        $text = $text ? $text : " ";
        
        # 实例化所有对象
        $new_icon_top = new \Imagick($icon_top);
        $new_icon_right = new \Imagick($icon_right);
        $new_icon_bottom = new \Imagick($icon_bottom);
        $new_icon_left = new \Imagick($icon_left);
        $new_original_img = new \Imagick($original_img);

        # 裁剪原图-获取有效图片
        $new_original_img->transparentPaintImage('#ffffff', 0, 10000, false);
        $new_original_img->trimImage(0);
        $new_original_img_width = $new_original_img->getImageWidth();                                   # 获取裁剪后的-宽度
        $new_original_img_height = $new_original_img->getImageHeight();                                 # 获取裁剪后的-高度


        # 制作-排边-上
        $new_icon_top->trimImage(0);
        $new_border_top = new \Imagick();
        $new_icon_top_width = $new_icon_top->getImageWidth();
        $new_icon_top_height = $new_icon_top->getImageHeight();
        $new_border_top->newImage($new_original_img_width-($margin*3), $new_icon_top_height*2, 'white');
        $new_border_top_margin = ( ( $new_original_img_width-($margin*3) - ($new_icon_top_width * $border_num) ) / $border_num ) + $new_icon_top_width;
        for($i=1; $i<=$border_num; $i++){
            $set_width = ($i-1)*$new_border_top_margin;
            $set_height = ($i-1)*$rotate;
            $new_border_top->compositeImage($new_icon_top, \Imagick::COMPOSITE_COPY, $set_width, $set_height);
        }
        $new_border_top->setImageFormat('png');
        # -将制作好的图转为PNG透明格式*进行二次处理
        $new_border_top->transparentPaintImage('#ffffff', 0, 10000, false);
        $new_border_top->trimImage(0);
        # -获取透明居中数据
        $new_border_top_png_width = $new_border_top->getImageWidth();
        $new_border_top_png_height = $new_border_top->getImageHeight();
        $new_border_top_png_margin_left = ($new_original_img_width-$new_border_top_png_width)/2;
        # -转为同等长度图片
        $new_border_top_return = new \Imagick();
        $new_border_top_return->newImage($new_original_img_width, $new_border_top_png_height, '#ffffff00');
        $new_border_top_return->compositeImage($new_border_top, \Imagick::COMPOSITE_COPY, $new_border_top_png_margin_left, 0);


        # 制作-排边-右
        $new_icon_right->trimImage(0);
        $new_border_right = new \Imagick();
        $new_icon_right_width = $new_icon_right->getImageWidth();
        $new_icon_right_height = $new_icon_right->getImageHeight();
        $new_border_right->newImage($new_icon_right_width, $new_original_img_height-($margin*4), 'white');
        $new_border_right_margin = ( ( $new_original_img_height-($margin*5) - ($new_icon_right_height * $border_num) ) / $border_num ) + $new_icon_right_height;
        for($i=1; $i<=$border_num; $i++){
            $set_width = 0;
            $set_height = ($i-1)*$new_border_right_margin;
            $new_border_right->compositeImage($new_icon_right, \Imagick::COMPOSITE_COPY, $set_width, $set_height);
        }
        $new_border_right->setImageFormat('png');
        # -将制作好的图转为PNG透明格式*进行二次处理
        $new_border_right->transparentPaintImage('#ffffff', 0, 10000, false);
        $new_border_right->trimImage(0);
        # -获取透明居中数据
        $new_border_right_png_width = $new_border_right->getImageWidth();
        $new_border_right_png_height = $new_border_right->getImageHeight();
        $new_border_right_png_margin_top = ($new_original_img_height-$new_border_right_png_height)/2;
        # -转为同等长度图片
        $new_border_right_return = new \Imagick();
        $new_border_right_return->newImage($new_border_right_png_width, $new_original_img_height, '#ffffff00');
        $new_border_right_return->compositeImage($new_border_right, \Imagick::COMPOSITE_COPY, 0, $new_border_right_png_margin_top);


        # 制作-排边-下
        $new_icon_bottom->trimImage(0);
        $new_border_bottom= new \Imagick();
        $new_icon_bottom_width = $new_icon_bottom->getImageWidth();
        $new_icon_bottom_height = $new_icon_bottom->getImageHeight();
        $new_border_bottom->newImage($new_original_img_width-($margin*3), $new_icon_bottom_height*2, 'white');
        $new_border_bottom_margin = ( ( $new_original_img_width-($margin*3) - ($new_icon_bottom_width * $border_num) ) / $border_num ) + $new_icon_bottom_width;
        for($i=1; $i<=$border_num; $i++){
            $set_width = ($i-1)*$new_border_bottom_margin;
            $set_height = $new_icon_bottom_height-(($i-1)*$rotate);
            $new_border_bottom->compositeImage($new_icon_bottom, \Imagick::COMPOSITE_COPY, $set_width, $set_height);
        }
        $new_border_bottom->setImageFormat('png');
        # -将制作好的图转为PNG透明格式*进行二次处理
        $new_border_bottom->transparentPaintImage('#ffffff', 0, 10000, false);
        $new_border_bottom->trimImage(0);
        # -获取透明居中数据
        $new_border_bottom_png_width = $new_border_bottom->getImageWidth();
        $new_border_bottom_png_height = $new_border_bottom->getImageHeight();
        $new_border_bottom_png_margin_left = ($new_original_img_width-$new_border_bottom_png_width)/2;
        # -转为同等长度图片
        $new_border_bottom_return = new \Imagick();
        $new_border_bottom_return->newImage($new_original_img_width, $new_border_bottom_png_height, '#ffffff00');
        $new_border_bottom_return->compositeImage($new_border_bottom, \Imagick::COMPOSITE_COPY, $new_border_bottom_png_margin_left, 0);


        # 制作-排边-左
        $new_icon_left->trimImage(0);
        $new_border_left = new \Imagick();
        $new_icon_left_width = $new_icon_left->getImageWidth();
        $new_icon_left_height = $new_icon_left->getImageHeight();
        $new_border_left->newImage($new_icon_left_width, $new_original_img_height-($margin*3), 'white');
        $new_border_left_margin = ( ( $new_original_img_height-($margin*3) - ($new_icon_left_height * $border_num) ) / $border_num ) + $new_icon_left_height;
        for($i=1; $i<=$border_num; $i++){
            $set_width = 0;
            $set_height = ($i-1)*$new_border_left_margin;
            $new_border_left->compositeImage($new_icon_left, \Imagick::COMPOSITE_COPY, $set_width, $set_height);
        }
        $new_border_left->setImageFormat('png');
        # -将制作好的图转为PNG透明格式*进行二次处理
        $new_border_left->transparentPaintImage('#ffffff', 0, 10000, false);
        $new_border_left->trimImage(0);
        # -获取透明居中数据
        $new_border_left_png_width = $new_border_left->getImageWidth();
        $new_border_left_png_height = $new_border_left->getImageHeight();
        $new_border_left_png_margin_top = ($new_original_img_height-$new_border_left_png_height)/2;
        # -转为同等长度图片
        $new_border_left_return = new \Imagick();
        $new_border_left_return->newImage($new_border_left_png_width, $new_original_img_height, '#ffffff00');
        $new_border_left_return->compositeImage($new_border_left, \Imagick::COMPOSITE_COPY, 0, $new_border_left_png_margin_top);


        # 制作-文字
        $new_original_compound_img = $new_original_img;
        $new_compound_img = new \Imagick();
        $new_compound_img->newImage($new_original_img_width, $new_original_img_height, '#ffffff00');
        # 制作-图标
        $new_icon = new \Imagick($logo);
        $new_icon_img_left = $new_icon->getImageHeight();
        $new_icon_img_top = $new_icon->getImageHeight();
        $new_icon_img_max_width = 50;
        $new_icon_img_max_height = 50;
        if ($new_icon_img_left > $new_icon_img_max_width) {
            $new_width = $new_icon_img_max_width;
            $new_height = intval(($new_width / $new_icon_img_left) * $new_icon_img_top);
        } elseif ($new_icon_img_top > $new_icon_img_max_height) {
            $new_height = $new_icon_img_max_height;
            $new_width = intval(($new_height / $new_icon_img_top) * $new_icon_img_left);
        } else {
            $new_width = $new_icon_img_left;
            $new_height = $new_icon_img_top;
        }
        $new_icon->scaleImage($new_width, $new_height);
        $new_icon->setImageAlphaChannel(\Imagick::ALPHACHANNEL_SET);
        $new_icon->opaquePaintImage('#000000', '#FFFFFF', 0, false);
        $new_icon_img_return_left = ($new_original_img_width / 2) - ($new_icon_img_left / 2);
        $new_icon_img_return_top = ($new_original_img_height / 2) - $new_icon_img_top;
        $new_compound_img->compositeImage($new_icon, \Imagick::COMPOSITE_OVER, $new_icon_img_return_left, $new_icon_img_return_top);
        $new_compound_img->setImageFormat('png');
        # 制作-文字-标题
        $new_title = new \ImagickDraw();
        $new_title->setFillColor('white');
        $new_title->setFontSize(24);
        $new_title->setTextAlignment(\Imagick::ALIGN_CENTER);
        $new_title_left = $new_original_img_width / 2;
        $new_title_top = $new_original_img_height / 2 + 40;
        $new_compound_img->annotateImage($new_title, $new_title_left, $new_title_top, 0, $title);
        # 制作-文字-描述
        $new_text = new \ImagickDraw();
        $new_text->setFillColor('white');
        $new_text->setFontSize(12);
        $new_text->setTextAlignment(\Imagick::ALIGN_CENTER);
        $new_text_left = $new_original_img_width  / 2;
        $new_text_top = $new_original_img_height  / 2 + 60;
        $new_compound_img->annotateImage($new_text, $new_text_left, $new_text_top, 0, $text);
        # 制作-旋转合成图
        $new_compound_img->rotateimage('#ffffff00', -1);
        $new_compound_img->gaussianBlurImage(1, 0.6, \Imagick::CHANNEL_DEFAULT); 

        # 合成产品图
        $new_original_compound_img->compositeImage($new_compound_img, \Imagick::COMPOSITE_OVER, 10, -20);


        # 生成输出画布
        $new_canver = new \Imagick();
        $new_canver->newImage($new_original_img_width+($margin*4), $new_original_img_height+($margin*4), 'white');
        # -合成图片
        # --合成上
        $new_canver->compositeImage($new_border_top_return, \Imagick::COMPOSITE_COPY, $margin*2, 0);
        # --合成右
        if ($topbottom) {
            $new_canver->compositeImage($new_border_right_return, \Imagick::COMPOSITE_COPY, $new_original_img_width+5, $margin*2);
        }
        # --合成下
        $new_canver->compositeImage($new_border_bottom_return, \Imagick::COMPOSITE_COPY, $margin*2, $new_original_img_height);
        # --合成元素图腾
        $new_canver->compositeImage($new_original_compound_img, \Imagick::COMPOSITE_OVER, $margin*2, $margin*2);
        # --合成左
        if ($topbottom) {
            $new_canver->compositeImage($new_border_left_return, \Imagick::COMPOSITE_OVER, 0, $margin*2);
        }
        

        
        # 输出最终返回图
        # -参数
        $new_canver_width = $new_canver->getImageWidth();
        $new_canver_height = $new_canver->getImageHeight();
        $new_canver_left = ($return_width-$new_canver_width)/2;
        $new_canver_top = ($return_height-$new_canver_height)/2;
        # -返回
        $new_canver_renturn = new \Imagick();
        $new_canver_renturn->newImage($return_width, $return_height, 'white');
        $new_canver_renturn->compositeImage($new_canver, \Imagick::COMPOSITE_OVER, $new_canver_left, $new_canver_top);


        # 生成图片
        $new_canver_renturn->writeImage('./public/uploads/return/result.png');

        return true;
    }
}

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