HEL/PImpLab11-ImageProcessing
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task 8.3

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This commit is contained in:
Louis Heredero 2023-12-05 00:03:53 +01:00
parent ee6999b095
commit 0657c28d7d
2 changed files with 36 additions and 2 deletions
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29
src/imagefilters/ImageFilters.scala
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@ -6,6 +6,19 @@ import java.awt.Color
* This class implements the various image filters
*/
object ImageFilters {
// Default factors (reference values)
/*val SEPIA_FACTORS: Array[Array[Double]] = Array(
Array( 0.393, 0.769, 0.189),
Array( 0.349, 0.686, 0.168),
Array( 0.272, 0.534, 0.131)
)*/
// Adapted factors (matches the example in the instructions)
val SEPIA_FACTORS: Array[Array[Double]] = Array(
Array( 0.883, 0.004, 0.003),
Array(-0.058, 0.791,-0.097),
Array( 0.034,-0.244, 0.583)
)
def filter(src: Array[Array[Int]], func: (Int, Int, Int, Int, Int) => Int): Array[Array[Int]] = {
val width: Int = src.length
@ -146,4 +159,20 @@ object ImageFilters {
else col
})
}
def sepia(a: Array[Array[Color]]): Array[Array[Color]] = colorFilter(a, (col) => {
val r: Double = Math.max(0, Math.min(255, col.getRed * SEPIA_FACTORS(0)(0) +
col.getGreen * SEPIA_FACTORS(0)(1) +
col.getBlue * SEPIA_FACTORS(0)(2)))
val g: Double = Math.max(0, Math.min(255, col.getRed * SEPIA_FACTORS(1)(0) +
col.getGreen * SEPIA_FACTORS(1)(1) +
col.getBlue * SEPIA_FACTORS(1)(2)))
val b: Double = Math.max(0, Math.min(255, col.getRed * SEPIA_FACTORS(2)(0) +
col.getGreen * SEPIA_FACTORS(2)(1) +
col.getBlue * SEPIA_FACTORS(2)(2)))
new Color(r.toInt, g.toInt, b.toInt)
})
}

9
src/imagefilters/ImageProcessingApp.scala
View File

@ -47,8 +47,13 @@ object ImageProcessingApp extends App {
val masked = new ImageGraphics(imageFile, "Masked", 256, -512)
masked.setPixelsColor(ImageFilters.mask(org.getPixelsColor(), mask.getPixelsBW()))*/
val imageFile: String = "./res/grace_hopper.jpg"
/*val imageFile: String = "./res/grace_hopper.jpg"
val org = new ImageGraphics(imageFile, "Original", -768, -512)
val pixelated = new ImageGraphics(imageFile, "Pixelated", -256, -512)
pixelated.setPixelsColor(ImageFilters.pixelize(org.getPixelsColor(), 30, 130, 120, 400, 230))
pixelated.setPixelsColor(ImageFilters.pixelize(org.getPixelsColor(), 30, 130, 120, 400, 230))*/
val imageFile: String = "./res/collins_eileen.png"
val org = new ImageGraphics(imageFile, "Original", -768, -512)
val sepia = new ImageGraphics(imageFile, "Sepia", -256, -512)
sepia.setPixelsColor(ImageFilters.sepia(org.getPixelsColor()))
}