From bb018b2d346134c3f399b2424a9f5908d7ecf455 Mon Sep 17 00:00:00 2001
From: Navan Chauhan <navanchauhan@gmail.com>
Date: Fri, 28 Mar 2025 12:22:58 -0600
Subject: disable trimming white borders

---
 iTexSnip/Utils/ImageUtils.swift | 37 +++++++++++++++++++++++++++++++++----
 1 file changed, 33 insertions(+), 4 deletions(-)

(limited to 'iTexSnip/Utils')

diff --git a/iTexSnip/Utils/ImageUtils.swift b/iTexSnip/Utils/ImageUtils.swift
index eead8e6..3a93492 100644
--- a/iTexSnip/Utils/ImageUtils.swift
+++ b/iTexSnip/Utils/ImageUtils.swift
@@ -94,7 +94,8 @@ func trimWhiteBorder(image: CIImage) -> CIImage? {
   return image.cropped(to: croppedRect)
 }
 func addWhiteBorder(to image: CIImage, maxSize: CGFloat) -> CIImage {
-  let randomPadding = (0..<4).map { _ in CGFloat(arc4random_uniform(UInt32(maxSize))) }
+  let clampedMaxSize = max(0, min(maxSize, CGFloat(UInt32.max)))
+  let randomPadding = (0..<4).map { _ in CGFloat(arc4random_uniform(UInt32(clampedMaxSize))) }
   var xPadding = randomPadding[0] + randomPadding[2]
   var yPadding = randomPadding[1] + randomPadding[3]
 
@@ -127,11 +128,39 @@ func padding(images: [CIImage], requiredSize: CGFloat) -> [CIImage] {
   }
 }
 
+func resizeIfLarger(image: CIImage, maxSize: CGFloat) -> CIImage {
+  let width = image.extent.width
+  let height = image.extent.height
+
+  if width <= maxSize && height <= maxSize {
+    return image
+  }
+
+  let aspectRatio = width / height
+  var newWidth: CGFloat
+  var newHeight: CGFloat
+
+  if aspectRatio > 1 {
+    newWidth = maxSize
+    newHeight = maxSize / aspectRatio
+  } else {
+    newHeight = maxSize
+    newWidth = maxSize * aspectRatio
+  }
+
+  let scaleX = newWidth / width
+  let scaleY = newHeight / height
+  let transform = CGAffineTransform(scaleX: scaleX, y: scaleY)
+  return image.transformed(by: transform)
+}
+
 func inferenceTransform(images: [NSImage]) -> [CIImage] {
   let ciImages = images.compactMap { nsImageToCIImage($0) }
-
-  let trimmedImages = ciImages.compactMap { trimWhiteBorder(image: $0) }
-  let paddedImages = padding(images: trimmedImages, requiredSize: FIXED_IMG_SIZE)
+  //  let trimmedImages = ciImages.compactMap { trimWhiteBorder(image: $0) }
+  //  let resizedImages = trimmedImages.map { resizeIfLarger(image: $0, maxSize: FIXED_IMG_SIZE) }
+  //  let paddedImages = padding(images: trimmedImages, requiredSize: FIXED_IMG_SIZE)
+  let resizedImages = ciImages.map { resizeIfLarger(image: $0, maxSize: FIXED_IMG_SIZE) }
+  let paddedImages = padding(images: resizedImages, requiredSize: FIXED_IMG_SIZE)
 
   return paddedImages
 }
-- 
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