ImageCompress

English | 中文

An Android image compression library based on libjpeg can extremely compress the image size while ensuring the quality. See the following for the specific compression effect.

For the implementation principle, seeblog

Add it in your root build.gradle at the end of repositories:

allprojects {
	repositories {
		...
		maven { url 'https://jitpack.io' }
	}
}

Step 2. Add the dependency

dependencies {
        implementation 'com.github.RickyHal:ImageCompressor:1.0'
}

How to use

bitmap compress to bitmap

  /**
     * Compress bitmap API
     *
     * @param context
     * @param srcBitmap src bitmap
     * @param quality   compress quality 0-100
     * @param format    compress format
     * @return dst bitmap
     */
    public static Bitmap compressBitmap(Context context, Bitmap srcBitmap, int quality, @Nullable Bitmap.CompressFormat format);

   // compress bitmap
   val dstBitmap = CompressUtil.compressBitmap(BaseApplication.gContext, srcBitmap, quality, Bitmap.CompressFormat.JPEG)

or bitmap compress to file

    // API
    public native static int compressBitmap(Bitmap bitmap, int quality, String destFile);

    // compress
    CompressUtil.compressBitmap(srcBitmap, quality, destPath)

Compression effect

• Original picture（2080*4413）5.56MB

• quality90%（2080*4413）1.87MB 耗时977ms

• quality80%（2080*4413）1.18MB 耗时916ms

• quality70%（2080*4413）918KB 耗时902ms

• quality60%（2080*4413）735KB 耗时870ms

• quality50%（2080*4413）622KB 耗时857ms

• quality40%（2080*4413）519KB 耗时858ms

• quality30%（2080*4413）420KB 耗时839ms

• quality20%（2080*4413）315KB 耗时828ms

• quality10%（2080*4413）199KB 耗时819ms

• quality5%（2080*4413）129KB 耗时809ms

• quality1%（2080*4413）91.8KB 耗时808ms

License

Copyright 2021 RickyHal

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.