如何在保存到服务器之前通过php调整android的图像大小

时间:2015-07-24 02:10:46

标签: php android image-resizing

我已经获得了从android获取图像并将其保存到我的服务器的代码,但是我需要将图像调整为标准尺寸。我环顾四周,无法得到任何工作。以下是我的代码。

<?php
    // Get image string
    $base = $_REQUEST['image'];

    // Get file name
    $filename = $_REQUEST['filename'];

    // Decode Image
    $binary = base64_decode($base);
    header('Content-Type: bitmap; charset=utf-8');

    // Images will be saved
    $file = fopen('/home1/skyrealm/public_html/img/'.$filename.'.jpg', 'wb');
    if($file != true)
    {
        echo'Error uploading image';
    }
    else
    {
        // Create/Svae File
        fwrite($file, $binary);
        fclose($file);
        echo 'Image upload successful';
    }
?>

编辑:

这是代码android方面:

public void encodeImagetoString() {
    new AsyncTask<Void, Void, String>() {

        protected void onPreExecute() {

        };

        @Override
        protected String doInBackground(Void... params) {
            BitmapFactory.Options options = null;
            options = new BitmapFactory.Options();
            options.inSampleSize = 3;

            bitmap = BitmapFactory.decodeFile(imgPath, options);
            ByteArrayOutputStream stream = new ByteArrayOutputStream();

            // Must compress the Image to reduce image size to make upload easy
            bitmap.compress(Bitmap.CompressFormat.PNG, 50, stream);
            byte[] byte_arr = stream.toByteArray();

            // Encode Image to String
            encodedString = Base64.encodeToString(byte_arr, 0);
            return "";
        }

        @Override
        protected void onPostExecute(String msg) {

            // Put converted Image string into Async Http Post param
            params.put("image", encodedString);

            // Trigger Image upload
            triggerImageUpload();
        }
    }.execute(null, null, null);
}

1 个答案:

答案 0 :(得分:1)

如评论中所述,如果您没有提供图像本身,则不需要header('Content-Type: bitmap; charset=utf-8');

关于调整脚本的大小调整或多或少可以使用ImagemagicGD library

关于调整大小的一些帖子:
php - resize and save an image?