From b9a9255a5cc3b331c264f6f89fa53e6392ad36cf Mon Sep 17 00:00:00 2001
From: Pierre-Yves Nicolas <6371790+pynicolas@users.noreply.github.com>
Date: Sat, 30 May 2026 21:52:02 +0200
Subject: [PATCH] More detailed exception when resizeToThumbnail fails (#185)

---
 .../java/org/fairscan/app/platform/ImageProcessor.kt   | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/org/fairscan/app/platform/ImageProcessor.kt b/app/src/main/java/org/fairscan/app/platform/ImageProcessor.kt
index edbf8b2..e96ff0e 100644
--- a/app/src/main/java/org/fairscan/app/platform/ImageProcessor.kt
+++ b/app/src/main/java/org/fairscan/app/platform/ImageProcessor.kt
@@ -38,6 +38,7 @@ import org.fairscan.imageprocessing.resizeForMaxPixels
 import org.fairscan.imageprocessing.rotate
 import org.fairscan.imageprocessing.scaledTo
 import org.opencv.android.Utils
+import org.opencv.core.CvException
 import org.opencv.core.Mat
 import org.opencv.core.Size
 import org.opencv.imgproc.Imgproc
@@ -47,7 +48,7 @@ class ImageProcessor(private val thumbnailSizePx: Int) : ImageTransformations {
 
     override fun rotate(input: Jpeg, rotationDegrees: Int): Jpeg {
         return transform(input, ExportQuality.BALANCED.jpegQuality) {
-            org.fairscan.imageprocessing.rotate(it, rotationDegrees)
+            rotate(it, rotationDegrees)
         }
     }
 
@@ -58,7 +59,12 @@ class ImageProcessor(private val thumbnailSizePx: Int) : ImageTransformations {
             val newW = (src.width() * ratio).toDouble()
             val newH = (src.height() * ratio).toDouble()
             val scaled = Mat()
-            Imgproc.resize(src, scaled, Size(newW, newH))
+            try {
+                Imgproc.resize(src, scaled, Size(newW, newH))
+            } catch (e: CvException) {
+                val msg = "Resize failed. src=${src.width()}x${src.height()} dst=${newW}x${newH}"
+                throw IllegalStateException(msg, e)
+            }
             scaled
         }
     }