Update README.md

README.md

@@ -5,8 +5,6 @@ Simple Go image processing package.
 Implements a number of basic image transformations (resizing, rotation, flipping) 
 as well as simplified image loading and saving.
 
-Planned: thumbnails, cropping, fitting in given size, color filling, pasting one image into another, optimizations.
-
 ### Installation
 
     go get github.com/disintegration/imaging
@@ -17,24 +15,41 @@ Planned: thumbnails, cropping, fitting in given size, color filling, pasting one
 package main
 
 import (
-  "github.com/disintegration/imaging"
-  "image"
+    "github.com/disintegration/imaging"
+    "image"
+    "image/color"
+    "image/draw"   
 )
 
 func main() {
-	src, _ := imaging.Open("1.png") // load image from file (returns image.Image interface)
-	var dst image.Image
-
-	dst = imaging.Copy(src) // copy entire image
-	dst = imaging.Rotate90(src) // rotate by 90 degrees clockwise 
-	dst = imaging.Rotate180(src) // rotate by 180 degrees clockwise
-	dst = imaging.Rotate270(src) // rotate by 270 degrees clockwise
-	dst = imaging.FlipH(src) // flip horizontally (left-to-right)
-	dst = imaging.FlipV(src) // flip vertically (top-to-bottom)
-	dst = imaging.Resize(src, 600, 400) // resize to 600x400 px
-  
-	imaging.Save(dst, "2.jpg", "jpeg") // save image to file using jpeg format
-}
+    src, _ := imaging.Open("1.png") // load image from file (returns image.Image interface)
+    var dst draw.Image
+    
+    dst = imaging.New(800, 600, color.NRGBA(255, 0, 0, 255)) // create a new 800x600px image filled with red color
+    dst = imaging.Copy(src) // copy entire image
+    
+    dst = imaging.Rotate90(src) // rotate by 90 degrees clockwise 
+    dst = imaging.Rotate180(src) // rotate by 180 degrees clockwise
+    dst = imaging.Rotate270(src) // rotate by 270 degrees clockwise
+
+    dst = imaging.FlipH(src) // flip horizontally (left-to-right)
+    dst = imaging.FlipV(src) // flip vertically (top-to-bottom)
 
+    dst = imaging.Resize(src, 600, 400) // resize to 600x400 px    
+
+    dst = imaging.Scale(src, 1.5) // scale img with given scale factor, keep aspect ratio
+    dst = imaging.ScaleToWidth(src, 800) // scale up or down to given image width, keep aspect ratio
+    dst = imaging.ScaleToHeight(src, 600) // scale up or down to given image height, keep aspect ratio
+
+    dst = imaging.Fit(src, 800, 600) // scale down to fit given maximum width and height, keep aspect ratio
+    dst = imaging.Thumbnail(src, 100, 100) // scale and crop the center of image to make a thumbnail
+    
+    dst = imaging.Crop(src, image.Rect(50, 50, 100, 100)) // copy a rectangular region from image
+    dst = imaging.CropCenter(src, 200, 100) // copy a rectangular region of given size from the center of image
+    dst = imaging.Paste(dst, src, image.Pt(50, 50)) // paste src image to dst at given position
+    dst = imaging.PasteCenter(dst, src) // paste src image to the center of dst
+ 
+    imaging.Save(dst, "2.jpg", "jpeg") // save image to file using jpeg format
+}
 ```