Add thumbnails

2022-04-18 07:16:46 +02:00
parent 2c95364fc4
commit 4e6230eef2
14 changed files with 347 additions and 39 deletions
@@ -1,5 +1,4 @@
 #include "rawimage.h"
-#include <QDebug>

 RawImage::ImgType CV2Type(int cvtype)
 {
@@ -259,3 +258,33 @@ const void *RawImage::data() const
 {
    return m_img.ptr();
 }
+
+void RawImage::convertToThumbnail()
+{
+    m_thumbAspect = (float)width() / height();
+    switch(CV_MAT_DEPTH(m_img.type()))
+    {
+    case CV_8U:
+        m_img.convertTo(m_img, CV_16U, 255);
+        break;
+    case CV_32F:
+        m_img.convertTo(m_img, CV_16U, 65535);
+        break;
+    case CV_16U:
+        break;
+    default:
+        break;
+    }
+
+    if(m_img.channels() == 1)
+        cv::cvtColor(m_img, m_img, cv::COLOR_GRAY2RGB);
+    if(m_img.channels() == 4)
+        cv::cvtColor(m_img, m_img, cv::COLOR_BGRA2RGB);
+    cv::Size dsize(THUMB_SIZE, THUMB_SIZE);
+    cv::resize(m_img, m_img, dsize, 0, 0, cv::INTER_NEAREST);
+}
+
+float RawImage::thumbAspect() const
+{
+    return m_thumbAspect;
+}