画像処理についてあれこれ

import groovy.swing.j2d.*

def gr = new GraphicsRenderer()
gr.renderToFile("sample1144a.png", 240, 80){
 antialias("on")
 font(new java.awt.Font('Tahoma', java.awt.Font.BOLD, 64))
 text( x:0, y:0,
   text: "Groovy",
   fill: color("#4466ff"),
   borderColor: no,
 ){
   filters {
     mosaic(blockSize: 4)
   }
 }
}

import javax.imageio.*;
import groovy.swing.j2d.*

// 角のサイズ
dx = 20
dy = 20
img = ImageIO.read(new File("sf.jpg"))
def gr = new GraphicsRenderer()
gr.renderToFile("sample1143a.png", 
  img.width, img.height){
  antialias("on")
  polygon( 
    points: [dx,0, img.width-dx-1,0, 
      img.width-1,dy, 
      img.width-1,img.height-dy-1,
      img.width-dx-1, img.height-1,
      dx, img.height-1,
      0, img.height-dy-1,
      0, dy],
    borderColor: no
  ){
    texturePaint(x: 0, y: 0, image: img )
  }
}

import groovy.swing.j2d.*

def gr = new GraphicsRenderer()
gr.renderToFile("sample1142a.png", 200, 200){
  antialias("on")
  rect( x: 0, y: 0, width: 200, height: 200,
    borderColor: no){
    texturePaint(x: 0, y: 0, file: 'sf.jpg' )
    filters {
      grayscale()
      // numColorsは8から256
      // see com.jhlabs.image.QuantizeFilter.
      quantize(numColors: 8)
    }
  }
}

import groovy.swing.j2d.*

def gr = new GraphicsRenderer()
gr.renderToFile("sample1141a.png", 200, 200){
antialias("on")
background(color: color("white"))
  rays(cx:90, cy:110, radius:200, rays:32,
    borderColor:no){
    radialGradient( cx: 90, cy: 110, radius:150){
      stop(offset: 0, color: "#7799ff")
      stop(offset: 1, color: "orange")
    }
  }
}

import groovy.swing.j2d.*

sw = 220
sh = 70
gr = new GraphicsRenderer()
img = gr.render(sw, sh){
  background(color: color("#ffffff"))
  rect(x:0, y:0, width: sw, height: sh){
    filters {
      scratch(angle:10, angleVariation:0.8,
        color: color("#000000"), density:0.7,
        length:0.5, width:0.5, seed:2009)
    }
  }
}
gr.renderToFile("sample1130a.png", sw, sh){
  antialias("on")
  background(color: color("#000000"))
  font(new java.awt.Font('Tahoma', java.awt.Font.BOLD, 60))
  text( x:0, y:0, text: "Groovy", borderColor:no){
   texturePaint(x: 0, y: 0, image: img )
  }
}

import javax.imageio.*;
import groovy.swing.j2d.*
import com.jhlabs.image.*;

img = ImageIO.read(new File("sf.jpg"))
gr = new GraphicsRenderer()
gr.renderToFile("sample952a.png", img.width,
img.height){
image(image: img)
rect(x:0, y:0, width: img.width,
height: img.height, borderColor:no){
  texturePaint(x: 0, y: 0, image:img )
  filters {
    lc = new LinearColormap((int)0xFFFFFF10, (int)0xFF3070A0)
    lookup(colormap:lc)
  }
}
}

import javax.imageio.*;
import groovy.swing.j2d.*

img = ImageIO.read(new File("sf.jpg"))
gr = new GraphicsRenderer()
gr.renderToFile("sample952a.png", img.width,
 img.height){
 image(image: img)
 rect(x:0, y:0, width: img.width,
 height: img.height, borderColor:no){
   texturePaint(x: 0, y: 0, image:img )
   filters {
     chromaKey(color: color("blue"),
       hTolerance:0.15, sTolerance:0.8,
       bTolerance:1)
     grayscale()
   }
 }
}

import javax.imageio.*;
import groovy.swing.j2d.*

img1 = ImageIO.read(new File("flower1.png"))
img2 = ImageIO.read(new File("flower2.png"))
gr = new GraphicsRenderer()
img = gr.render(img1.width + img2.width,
 img1.height + img2.height){
 image(image: img1, x:0, y:0)
 image(image: img2, x:img1.width, y:0)
 image(image: img2, x:0, y:img1.height)
 image(image: img1, x:img2.width, y:img2.height)
}
gr.renderToFile("sample951a.png", 200, 200){
 antialias("on")
 rect(x:0, y:0, width: 200,
 height: 200, borderColor:no){
   texturePaint(x: 0, y: 0, image: img )
 }
}

import javax.imageio.*;
import groovy.swing.j2d.*

img = ImageIO.read(new File("sf.jpg"))
gr = new GraphicsRenderer()
gr.renderToFile("sample950a.png", img.width, img.height){
antialias("on")
image(image: img)
font(new java.awt.Font('Tahoma', java.awt.Font.BOLD, 110))
subtract( borderColor: no, fill: 'white'){
  rect(x:20, y:20, width: img.width-40, height: img.height-40)
  text( x:30, y:60, text: "SF")
}
}
gr.renderToFile("sample950b.png", img.width, img.height){
antialias("on")
image(image: img)
font(new java.awt.Font('Tahoma', java.awt.Font.BOLD, 110))
subtract( borderColor: no, fill: 'black', opacity:0.5){
  rect(x:20, y:20, width: img.width-40, height: img.height-40)
  text( x:30, y:60, text: "SF")
}
}

import javax.imageio.*;
import groovy.swing.j2d.*

img = ImageIO.read(new File("sf.jpg"))
gr = new GraphicsRenderer()
gr.renderToFile("sample949a.png", img.width, img.height){
antialias("on")
image(image: img)
image(file: 'sample3b.jpg', x:10, y:10, opacity:0.5)
}

import javax.imageio.*;
import groovy.swing.j2d.*

img = ImageIO.read(new File("sf.jpg"))
gr = new GraphicsRenderer()
gr.renderToFile("sample948a.png", img.width, img.height){
 antialias("on")
 rect( x: 0, y: 0,
   width: img.width, height: img.height,
   borderColor: no){
   texturePaint(x: 0, y: 0, image: img )
   filters {
     grayscale()
   }
 }
 ellipse( cx: img.width/2, cy: img.height/2,
   radiusx: img.width/2, radiusy: img.height/2,
   borderColor: no){
   texturePaint(x: 0, y: 0, image: img )
 }
}

import groovy.swing.j2d.*

def gr = new GraphicsRenderer()
gr.renderToFile("sample947a.png", 200, 200){
antialias("on")
butterflyShape( x: 0, y: 0, width: 200, height: 200,
  fill: color("#bbddff"),
  borderColor: color("#103080"),
  borderWidth: 2
){
  transformations{
    rotate(angle:45, x:100, y:100)
  }
}
}

import groovy.swing.j2d.*

def gr = new GraphicsRenderer()
imgb = gr.render(200, 200){
 antialias("on")
 butterflyShape( x: 10, y: 10, width: 180, height: 180,
   fill: color("#bbddff"),
   borderColor: color("#103080"),
   borderWidth: 2
 )
}
gr.renderToFile("sample946a.png", 200, 200){
 antialias("on")
 rect( x: 0, y: 0, width: 200, height: 200,
   borderColor: no){
   texturePaint(x: 0, y: 0, image: imgb )
   filters {
     gaussianBlur(radius:10)
   }
 }
}

import javax.imageio.*;
import groovy.swing.j2d.*

img = ImageIO.read(new File("sample3b.jpg"))
w = img.getWidth()
h = img.getHeight()
println("w:${w}, h:${h}")

gr = new GraphicsRenderer()
gr.renderToFile("sample945a.png", w*2, h*2){
 antialias("on")
 rect( x: 0, y: 0, width: w, height: h,
   borderColor: no){
   texturePaint(x: 0, y: 0, image: img )
   filters {
     grayscale()
   }
 }
 rect( x: w, y: 0, width: w, height: h,
   borderColor: no){
   texturePaint(x: 0, y: 0, image: img )
   filters {
     invert()
     grayscale()
   }
 }
 rect( x: 0, y: h, width: w, height: h,
   borderColor: no){
   texturePaint(x: 0, y: 0, image: img )
   filters {
     invert()
     grayscale()
   }
 }
 rect( x: w, y: h, width: w, height: h,
   borderColor: no){
   texturePaint(x: 0, y: 0, image: img )
   filters {
     grayscale()
   }
 }
}

import javax.imageio.*;
import groovy.swing.j2d.*

w=200
h=200
gr = new GraphicsRenderer()
gr.renderToFile("sample1010a.png", w, h){
 antialias 'on'
 rect( x: 0, y: 0, width: w, height: h,
   borderColor: no){
   filters {
     fourColorFill(
       colorNE: 'red',
       colorNW: 'yellow',
       colorSE: 'green',
       colorSW: 'blue')
   }
 }
}

import groovy.swing.j2d.*

w=200
h=200
gr = new GraphicsRenderer()
gr.renderToFile("sample1009a.png", w, h){
 antialias 'on'
 rect( x: 0, y: 0, width: w, height: h,
   borderColor: no){
   filters {
     fractalFlame()
   }
 }
}
gr.renderToFile("sample1009b.png", w, h){
 antialias 'on'
 rect( x: 0, y: 0, width: w, height: h,
   borderColor: no){
   filters {
     fractalFlame(ifs: new org.jvnet.substance.watermarkpack.flamefractal.Vortex())
   }
 }
}

import javax.imageio.*;
import groovy.swing.j2d.*

img = ImageIO.read(new File("sf.jpg"))
w = img.getWidth()
h = img.getHeight()
gr = new GraphicsRenderer()
gr.renderToFile("sample1008a.png", w, h){
 antialias 'on'
 rect( x: 0, y: 0, width: w, height: h,
   borderColor: no){
   texturePaint(x: 0, y: 0, image: img )
   filters {
     lights {
       pointLight(azimuth: 90/180f*Math.PI,
         elevation: 0.4,
         intensity: 0.7,
         color: 'yellow',
         centreX:0.8, centreY:0.1)
     }
   }
 }
}

import javax.imageio.*;
import groovy.swing.j2d.*

img = ImageIO.read(new File("sf.jpg"))
w = img.getWidth()
h = img.getHeight()
gr = new GraphicsRenderer()
imgb = gr.render(w, h){
antialias("on")
rect( x: 0, y: 0, width: w, height: h,
  borderColor: no, fill: color("#ffffff")){
}
font(new java.awt.Font('Tahoma', java.awt.Font.BOLD, 120))
text( x:30, y:60, text: "SF",  fill: 'black')
}

imgc = gr.render(w, h){
antialias("on")
rect( x: 0, y: 0, width: w, height: h,
  borderColor: no){
  texturePaint(x: 0, y: 0, image: imgb )
  filters {
    gaussianBlur(radius:6)
  }
}
}

gr.renderToFile("sample1007a.png", w, h){
antialias("on")
rect( x: 0, y: 0, width: w, height: h,
  borderColor: no){
  texturePaint(x: 0, y: 0, image: img )
  filters {
    displace(amount:0.5, displacementMap: imgc, edgeAction:'clamp')
  }
}
}

import groovy.swing.j2d.*

def gr = new GraphicsRenderer()
gr.renderToFile("sample835a.png", 200, 200){
 antialias("on")
 rect( x: 0, y: 0, width: 200, height: 200,
   borderColor: no){
   texturePaint(x: 0, y: 0, file: 'sf.jpg' )
   filters {
     flare(color: color("#ffffff"),
       ringWidth: 1.2, baseAmount: 0.9,
       ringAmount: 0.2, rayAmount: 1.4,
       centre: new java.awt.geom.Point2D.Float(0.7f, 0.3f),
       radius: 70)
   }
 }
}

import groovy.swing.j2d.*

def gr = new GraphicsRenderer()
gr.renderToFile("sample834a.png", 200, 70){
 antialias("on")
 font(new java.awt.Font('Tahoma', java.awt.Font.BOLD, 50))
 text( x:5, y:10,
   text: "Sample",
   fill: color("#ffffff"),
   borderColor: no
 ){
   filters {
     chrome(amount: 0.3, exposure: 1.0)
   }
 }
}