Create README.md

Author: SD810

README.md

@@ -0,0 +1,45 @@
+# ResizeImageJava
+이미지 리사이징 기능 구현체
+from: https://stackoverflow.com/a/36367652
+
+## dependencies
+put this in project's "libs" folder as described in fileTree
+```
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'com.mortennobel:java-image-scaling:0.8.6'
+    implementation 'net.coobird:thumbnailator:0.4.8'
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+}
+```
+
+## Usage
+```Java
+// listOfFiles : File[] or String[]
+// targetWidth/targetHeight : int, pixel
+// doStretch : boolean for ignoring aspect ratio
+ResizeProcessor.resizeImagesWithThese(listOfFiles, targetWidth, targetHeight, doStretch);
+```
+
+```Java
+// file : File
+// targetWidth/targetHeight : int, pixel
+// doStretch : boolean for ignoring aspect ratio
+ResizeProcessor.resizeImageForThis(file, targetWidth, targetHeight, doStretch);
+```
+
+## Change Algorithm
+set into
+```Java
+ResizeProcessor.resizerAlgorithm = ResizeProcessor.RESIZER_LANCOZ;
+```
+pick from these
+```Java
+public static final int RESIZER_JDK_PROGRESSIVE = 1;
+public static final int RESIZER_JDK_DIRECT = 2;
+public static final int RESIZER_LANCOZ = 3;
+public static final int RESIZER_THUMBNAILATOR = 4;
+```