magickresize.scala

package com.examples.img

import java.io.File
import scala.sys.process._

class ImageMagickConverter(convertExec: String) {

  def resizeImage(in: File, out: File, width: Int, height: Int, quality: Int = ImageMagickConverter.DefaultQuality): Boolean = {
    val qual = if (quality < 0) ImageMagickConverter.DefaultQuality else if (quality > 100) 100 else quality
    val inAbsPath = in.getAbsolutePath()
    val outAbsPath = out.getAbsolutePath()
    val cmd = s"${convertExec} -geometry ${width}x${height} -quality ${qual} ${inAbsPath} ${outAbsPath}"
    val exitCode = cmd.!
    exitCode == 0
  }
}

object ImageMagickConverter {
  val DefaultQuality = 80

  def main(args: Array[String]) {
    println(new ImageMagickConverter("""c:\programy\portable\ImageMagick-6.8.5-10\convert.exe""")
      .resizeImage(new File("""c:\Radek\obrazky\conectarok_1328754878_49.jpg"""),
        new File("""c:\Radek\obrazky\conectarok_1328754878_49-out.jpg"""), 336, 210))
  }
}