cyy/Fairscan_cyy
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Width/height for the document: use avg rather than max

Browse Source
This commit is contained in:
Pierre-Yves Nicolas
2025-06-21 14:45:30 +02:00
parent cf1dc97b7e
commit 5b777e5edc
1 changed files with 6 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
app/src/main/java/org/mydomain/myscan/DocumentDetection.kt
View File

@@ -69,11 +69,11 @@ fun detectDocumentQuad(mask: Bitmap): Quad? {
fun extractDocument(originalBitmap: Bitmap, quad: Quad, rotationDegrees: Int): Bitmap {
val widthTop = norm(quad.topLeft, quad.topRight)
val widthBottom = norm(quad.bottomLeft, quad.bottomRight)
val maxWidth = max(widthTop, widthBottom).toInt()
val targetWidth = (widthTop + widthBottom) / 2
val heightLeft = norm(quad.topLeft, quad.bottomLeft)
val heightRight = norm(quad.topRight, quad.bottomRight)
val maxHeight = max(heightLeft, heightRight).toInt()
val targetHeight = (heightLeft + heightRight) / 2
val srcPoints = MatOfPoint2f(
quad.topLeft.toCv(),
@@ -83,16 +83,16 @@ fun extractDocument(originalBitmap: Bitmap, quad: Quad, rotationDegrees: Int): B
)
val dstPoints = MatOfPoint2f(
org.opencv.core.Point(0.0, 0.0),
org.opencv.core.Point(maxWidth.toDouble(), 0.0),
org.opencv.core.Point(maxWidth.toDouble(), maxHeight.toDouble()),
org.opencv.core.Point(0.0, maxHeight.toDouble())
org.opencv.core.Point(targetWidth.toDouble(), 0.0),
org.opencv.core.Point(targetWidth.toDouble(), targetHeight.toDouble()),
org.opencv.core.Point(0.0, targetHeight.toDouble())
)
val transform = Imgproc.getPerspectiveTransform(srcPoints, dstPoints)
val inputMat = Mat()
Utils.bitmapToMat(originalBitmap, inputMat)
val outputMat = Mat()
val outputSize = Size(maxWidth.toDouble(), maxHeight.toDouble())
val outputSize = Size(targetWidth.toDouble(), targetHeight.toDouble())
Imgproc.warpPerspective(inputMat, outputMat, transform, outputSize)
val enhanced = enhanceCapturedImage(outputMat)