diff --git a/imgui.ini b/imgui.ini
index c226ff0..0c0f7dd 100644
--- a/imgui.ini
+++ b/imgui.ini
@@ -5,14 +5,14 @@ Collapsed=0
 DockId=0x00000003,0
 
 [Window][Edit Image]
-Pos=3563,19
-Size=277,2072
+Pos=3308,19
+Size=532,2072
 Collapsed=0
 DockId=0x00000002,0
 
 [Window][Image View]
 Pos=503,19
-Size=3058,2072
+Size=2803,2072
 Collapsed=0
 DockId=0x00000004,0
 
@@ -261,10 +261,25 @@ Pos=290,135
 Size=700,450
 Collapsed=0
 
+[Window][Open Image File##filebrowser_99169579131200]
+Pos=290,135
+Size=700,450
+Collapsed=0
+
+[Window][Open Image File##filebrowser_101923340128576]
+Pos=290,135
+Size=700,450
+Collapsed=0
+
+[Window][Open Image File##filebrowser_106637927567680]
+Pos=290,135
+Size=700,450
+Collapsed=0
+
 [Docking][Data]
 DockSpace     ID=0xE098E157 Window=0x9E772337 Pos=0,19 Size=3840,2072 Split=X
-  DockNode    ID=0x00000001 Parent=0xE098E157 SizeRef=1641,720 Split=X
+  DockNode    ID=0x00000001 Parent=0xE098E157 SizeRef=3306,720 Split=X
     DockNode  ID=0x00000003 Parent=0x00000001 SizeRef=501,720 Selected=0x5593B2D4
-    DockNode  ID=0x00000004 Parent=0x00000001 SizeRef=3058,720 CentralNode=1 Selected=0x9B39CB70
-  DockNode    ID=0x00000002 Parent=0xE098E157 SizeRef=277,720 Selected=0x610DAB84
+    DockNode  ID=0x00000004 Parent=0x00000001 SizeRef=2803,720 CentralNode=1 Selected=0x9B39CB70
+  DockNode    ID=0x00000002 Parent=0xE098E157 SizeRef=532,720 Selected=0x610DAB84
 
diff --git a/main.cpp b/main.cpp
index 42d9de1..0b3996b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1100,7 +1100,7 @@ void ComputeHistogramGPU(GLuint inputTextureID, int width, int height) {
     // Bind input texture as image unit 0 (read-only)
     // IMPORTANT: Ensure the format matches the compute shader layout qualifier (e.g., rgba8)
     // If textureToDisplay is RGBA16F, you'd use layout(rgba16f) in shader
-    glBindImageTexture(0, inputTextureID, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA8); // Assuming display texture is RGBA8
+    glBindImageTexture(0, inputTextureID, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA16); // Assuming display texture is RGBA8
 
     // Bind SSBO to binding point 1
     glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, g_histogramSSBO);
@@ -1120,7 +1120,7 @@ void ComputeHistogramGPU(GLuint inputTextureID, int width, int height) {
 
     // Unbind resources (optional here, but good practice)
     glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, 0);
-    glBindImageTexture(0, 0, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA8);
+    glBindImageTexture(0, 0, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA16);
     glUseProgram(0);
 
     // 4. Read histogram data back from SSBO to CPU vector
@@ -1740,7 +1740,7 @@ int main(int, char **)
             GLuint displayTexId = textureToDisplay; // Use the display texture ID
             if (displayTexId != 0)
             {
-                ComputeHistogramGPU(displayTexId, g_loadedImage.getWidth(), g_loadedImage.getHeight());
+                ComputeHistogramGPU(textureToDisplay, g_loadedImage.getWidth(), g_loadedImage.getHeight());
                 // Assume ImGuiTexInspect fills available space. This might need adjustment.
                 ImVec2 displaySize = availableContentSize;
                 float displayAspect = displaySize.x / displaySize.y;
@@ -1942,7 +1942,6 @@ int main(int, char **)
             ImGui::Begin("Image Exif");
             if (g_imageIsLoaded)
             {
-                ComputeHistogramGPU(textureToDisplay, g_loadedImage.getWidth(), g_loadedImage.getHeight());
                 ImGui::Text("Image Width: %d", g_loadedImage.m_width);
                 ImGui::Text("Image Height: %d", g_loadedImage.m_height);
                 ImGui::Text("Image Loaded: %s", g_imageIsLoaded ? "Yes" : "No");
@@ -1963,7 +1962,7 @@ int main(int, char **)
             ImGui::Begin("Edit Image");
 
             if (ImGui::CollapsingHeader("Histogram", ImGuiTreeNodeFlags_DefaultOpen)) {
-                DrawHistogramWidget("ExifHistogram", ImVec2(-1, 100));
+                DrawHistogramWidget("ExifHistogram", ImVec2(-1, 256));
             }
 
             // --- Edit Image (Right) ---
diff --git a/shaders/histogram.comp b/shaders/histogram.comp
index 01eeb6c..bb5c30f 100644
--- a/shaders/histogram.comp
+++ b/shaders/histogram.comp
@@ -3,7 +3,7 @@
 // Input Texture (the processed image ready for display)
 // Binding = 0 matches glBindImageTexture unit
 // Use rgba8 format as we assume display texture is 8-bit sRGB (adjust if needed)
-layout(binding = 0, rgba8) uniform readonly image2D InputTexture;
+layout(binding = 0, rgba16f) uniform readonly image2D InputTexture;
 
 // Output Histogram Buffer (SSBO)
 // Binding = 1 matches glBindBufferBase index