v2.4.6v2.4.6

* **(Improvement) Calibration - Elephant Foot:** (#145)
   * Remove text from bottom layers to prevent islands from not adhering to plate
   * Add a option to extrude text up to a height
* **(Improvement) Calibration - Exposure time finder:** (#144)
   * Increase the left and right margin to 10mm
   * Allow to iterate over pixel brightness and generate dimmed objects to test multiple times at once
* **(Fix) File format PWS:**
   * Some files would produce black layers if pixels are not full whites, Antialiasing level was not inherit from source
   * Antialiasing level was forced 1 and not read the value from file properties
   * Antialiasing threshold pixel math was producing the wrong pixel value
* **(Fix) Raw images (jpg, png, etc):** (#146)
   * Set layer height to be 0.01mm by default to allow the use of some tools
   * When add layers by clone or other tool it don't update layers height, positions, indexes, leading to crashes
* **(Fix) Actions - Import Layers:** (#146, #147)
   * ROI calculation error leading to not process images that can potential fit inside the volumes
   * Out-of-bounds calculation for Stack type
   * Replace type was calculating out-of-bounds calculation like Stack type when is not required to and can lead to skip images
   * Better image ROI colection for Insert and Replace types instead of capture the center most
* (Fix) Settings window: Force a redraw on open to fix auto sizes

1 files changed, 19 insertions, 8 deletions

diff --git a/UVtools.Core/Extensions/EmguExtensions.cs b/UVtools.Core/Extensions/EmguExtensions.cs
index b5ed369..2eaa12a 100644
--- a/UVtools.Core/Extensions/EmguExtensions.cs
+++ b/UVtools.Core/Extensions/EmguExtensions.cs
@@ -8,6 +8,7 @@
 
 using System;
 using System.Drawing;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using Emgu.CV;
 using Emgu.CV.CvEnum;
@@ -275,15 +276,25 @@ namespace UVtools.Core.Extensions
             return mat;
         }
 
-        public static Mat RoiFromCenter(this Mat mat, Size size)
+        public static Mat RoiFromCenter(this Mat mat, Size targetSize, Rectangle roi)
         {
-            if (size == mat.Size) return mat;
-            return new Mat(mat, new Rectangle(
-                 mat.Size.Width / 2 - size.Width / 2,
-                 mat.Size.Height / 2 - size.Height / 2,
-                 size.Width,
-                 size.Height
-                ));
+            if (targetSize == mat.Size) return mat;
+            var newMat = InitMat(targetSize);
+
+            var roiMat = new Mat(mat, roi);
+
+
+            //int xStart = mat.Width / 2 - targetSize.Width / 2;
+            //int yStart = mat.Height / 2 - targetSize.Height / 2;
+
+            var newMatRoi = new Mat(newMat, new Rectangle(
+                targetSize.Width / 2 - roi.Width / 2,
+                targetSize.Height / 2 - roi.Height / 2,
+                roi.Width,
+                roi.Height
+            ));
+            roiMat.CopyTo(newMatRoi);
+            return newMat;
         }
 
     }