first commit

build.sbt

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+lazy val commonSettings = Seq(
+  version := "0.1.0",
+  scalaVersion := "2.11.7"
+)
+
+lazy val root = (project in file(".")).
+  settings(commonSettings: _*).
+  settings(
+    name := "pencil_style_scala"
+  )
+
+
+libraryDependencies  ++= Seq(
+  "org.scalanlp" %% "breeze" % "0.12",
+  "org.scalanlp" %% "breeze-natives" % "0.12",
+  "org.scalanlp" %% "breeze-viz" % "0.12"
+)
+
+resolvers ++= Seq(
+  "Sonatype Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots/",
+  "Sonatype Releases" at "https://oss.sonatype.org/content/repositories/releases/"
+)

project/build.properties

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+sbt.version=0.13.11
+

project/plugins.sbt

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+addSbtPlugin("com.typesafe.sbteclipse" % "sbteclipse-plugin" % "4.0.0")
+

python/solve.py

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+from scipy.sparse import lil_matrix
+from scipy.sparse.linalg import spsolve
+import os
+
+
+A = lil_matrix((10, 10))
+b = lil_matrix((10, 10))
+
+for line in open( os.getcwd() + '/python/' + 'AA.txt','r').readlines():
+	lists = line.split()
+	if len(lists) == 2:
+		A = lil_matrix( ( int(lists[0]), int(lists[1]) ) )
+	else:
+		A[int(lists[0]), int(lists[1])] = float(lists[2])
+
+for line in open( os.getcwd()  + '/python/' + 'bb.txt','r').readlines():
+	lists = line.split()
+	if len(lists) == 2:
+		b = lil_matrix( ( int(lists[0]), int(lists[1]) ) )
+	else:
+		b[int(lists[0]), int(lists[1])] = float(lists[2])
+
+A = A.tocsr()
+x = spsolve(A, b)
+
+fo = open( os.getcwd() + '/python/' + 'xx.txt', 'wb')
+for xx in x:
+	fo.write( str(xx) + '\n' );
+
+fo.close()

run_script.sh

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+ROOT=$(cd "$(dirname $0)"; pwd)
+
+# better to copy your opencv-300.jar to replace this one
+OPENCV_JAR_FILE=$ROOT/lib/opencv-300.jar
+
+# needs to set to your opencv-3.0 build lib path 
+LIBRARY_PATH=$HOME/opencv3.0/opencv-3.0.0/build/lib/
+
+CLASS_PATH=$OPENCV_JAR_FILE:$ROOT/target/scala-2.11/classes/:$HOME/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.11.7.jar:\
+$HOME/.ivy2/cache/org.scalanlp/breeze_2.11/jars/breeze_2.11-0.12.jar:\
+$HOME/.ivy2/cache/org.scalanlp/breeze-macros_2.11/jars/breeze-macros_2.11-0.12.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/core/jars/core-1.1.2.jar:\
+$HOME/.ivy2/cache/net.sourceforge.f2j/arpack_combined_all/jars/arpack_combined_all-0.1.jar:\
+$HOME/.ivy2/cache/net.sf.opencsv/opencsv/jars/opencsv-2.3.jar:\
+$HOME/.ivy2/cache/com.github.rwl/jtransforms/jars/jtransforms-2.4.0.jar:\
+$HOME/.ivy2/cache/junit/junit/jars/junit-4.8.2.jar:\
+$HOME/.ivy2/cache/org.apache.commons/commons-math3/jars/commons-math3-3.2.jar:\
+$HOME/.ivy2/cache/org.spire-math/spire_2.11/jars/spire_2.11-0.7.4.jar:\
+$HOME/.ivy2/cache/org.spire-math/spire-macros_2.11/jars/spire-macros_2.11-0.7.4.jar:\
+$HOME/.ivy2/cache/org.slf4j/slf4j-api/jars/slf4j-api-1.7.5.jar:\
+$HOME/.ivy2/cache/com.chuusai/shapeless_2.11/bundles/shapeless_2.11-2.0.0.jar:\
+$HOME/.ivy2/cache/org.scalanlp/breeze-natives_2.11/jars/breeze-natives_2.11-0.12.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_ref-osx-x86_64/jars/netlib-native_ref-osx-x86_64-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/native_ref-java/jars/native_ref-java-1.1.jar:\
+$HOME/.ivy2/cache/com.github.fommil/jniloader/jars/jniloader-1.1.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_ref-linux-x86_64/jars/netlib-native_ref-linux-x86_64-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_ref-linux-i686/jars/netlib-native_ref-linux-i686-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_ref-win-x86_64/jars/netlib-native_ref-win-x86_64-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_ref-win-i686/jars/netlib-native_ref-win-i686-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_ref-linux-armhf/jars/netlib-native_ref-linux-armhf-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_system-osx-x86_64/jars/netlib-native_system-osx-x86_64-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/native_system-java/jars/native_system-java-1.1.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_system-linux-x86_64/jars/netlib-native_system-linux-x86_64-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_system-linux-i686/jars/netlib-native_system-linux-i686-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_system-linux-armhf/jars/netlib-native_system-linux-armhf-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_system-win-x86_64/jars/netlib-native_system-win-x86_64-1.1-natives.jar:\
+$HOME/.ivy2/cache/com.github.fommil.netlib/netlib-native_system-win-i686/jars/netlib-native_system-win-i686-1.1-natives.jar:\
+$HOME/.ivy2/cache/org.scalanlp/breeze-viz_2.11/jars/breeze-viz_2.11-0.12.jar:\
+$HOME/.ivy2/cache/jfree/jcommon/jars/jcommon-1.0.16.jar:\
+$HOME/.ivy2/cache/jfree/jfreechart/jars/jfreechart-1.0.13.jar:\
+$HOME/.ivy2/cache/org.apache.xmlgraphics/xmlgraphics-commons/jars/xmlgraphics-commons-1.3.1.jar:\
+$HOME/.ivy2/cache/commons-io/commons-io/jars/commons-io-1.3.1.jar:\
+$HOME/.ivy2/cache/commons-logging/commons-logging/jars/commons-logging-1.0.4.jar:\
+$HOME/.ivy2/cache/com.lowagie/itext/jars/itext-2.1.5.jar:\
+$HOME/.ivy2/cache/bouncycastle/bcmail-jdk14/jars/bcmail-jdk14-138.jar:\
+$HOME/.ivy2/cache/bouncycastle/bcprov-jdk14/jars/bcprov-jdk14-138.jar
+
+PYTHON_DIR_PATH=$ROOT/python	
+
+IMG_PATH=$ROOT/images/img/flower.png
+OUT_PATH=$ROOT/images/pencil_result.jpg
+TEXTURE_IMG_PATH=$ROOT/images/textures/texture.jpg
+
+# set to 0 generates the pencil drawing, 
+# set to 1 generates the colourful pencil drawing
+IS_DRAW_COLOR=1
+
+# set to 1 will output the middle results
+# set to 0 just output the final result
+IS_SHOW_STEP=1
+
+
+
+java -Xmx4G -cp $CLASS_PATH \
+	-Djava.library.path=$LIBRARY_PATH \
+	PencilStyle $IMG_PATH $OUT_PATH $TEXTURE_IMG_PATH $IS_DRAW_COLOR $PYTHON_DIR_PATH $IS_SHOW_STEP                     

src/main/scala/PencilStyle.scala

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+import org.opencv.core.Core
+import Utils._
+import java.io.InputStreamReader
+import java.io.BufferedReader
+
+object PencilStyle {
+
+  def main(args: Array[String]): Unit = {
+    System.loadLibrary(Core.NATIVE_LIBRARY_NAME)
+    if(args.length < 6) {
+      println("usage: PencilStyle imagePath resultPath textureImgPath isDrawColor pythonDirPath isShowSteps")
+    }
+    val img = imgRead(args(0))
+
+    val (showStep, outputPath) = if (args(5).toInt == 1) (true, args(1).substring(0, args(1).lastIndexOf("/"))) else (false, "")
+
+    val cons = Configs(
+        30,                   // larger for a shorter line fragment
+        8,                     // smaller for thiner outline sketches
+        2f,                    //larger for smoother tonal mappings
+        0.2f,
+        args(2),
+        args(4),
+        showStep,
+        outputPath
+    )
+    val result = {
+      if (args(3).toInt == 0) pencilDraw(img, cons)
+      else colourPencilDraw(img, cons)
+    }
+    imgWrite(result, args(1))
+  }
+
+}

src/main/scala/test.scala

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+import org.opencv.core.Core
+
+object test {
+
+  def run() =  {
+
+  }
+
+  def main(args: Array[String]): Unit = {
+    System.loadLibrary(Core.NATIVE_LIBRARY_NAME)
+    println("Hello, OpenCV")
+    // Load the native library.
+  }
+
+}