Peter M. Groen / openbr

Commit 3fcbaa1556db562dca5abe042faa7beac2dd28cb

Authored by bhklein
1 parent 88f9cd92

add scale factor option to scaleRects.

Inline Side-by-side
Showing 1 changed file with 15 additions and 1 deletions
openbr/plugins/metadata/scalerects.cpp
  View file @3fcbaa1
... ... @@ -24,13 +24,14 @@ namespace br
24 24  
25 25 /*!
26 26 * \ingroup transforms
27   - * \brief Creates a bounding square around three points (typically the two eyes and the chin).
  27 + * \brief Scales a rectangle either by pixel value or factor.
28 28 * \author Scott Klum \cite sklum
29 29 * \br_property int index Index of rect to scale.
30 30 * \br_property int left Number of pixels to scale the left of the rect.
31 31 * \br_property int top Number of pixels to scale the top of the rect.
32 32 * \br_property int right Number of pixels to scale the right of the rect.
33 33 * \br_property int bottom Number of pixels to scale the bottom of the rect.
  34 + * \br_property float factor Scale factor.
34 35 */
35 36 class ScaleRectsTransform : public UntrainableTransform
36 37 {
... ... @@ -41,15 +42,28 @@ class ScaleRectsTransform : public UntrainableTransform
41 42 Q_PROPERTY(int top READ get_top WRITE set_top RESET reset_top STORED false)
42 43 Q_PROPERTY(int right READ get_right WRITE set_right RESET reset_right STORED false)
43 44 Q_PROPERTY(int bottom READ get_bottom WRITE set_bottom RESET reset_bottom STORED false)
  45 + Q_PROPERTY(float factor READ get_factor WRITE set_factor RESET reset_factor STORED false)
44 46 BR_PROPERTY(int, index, 0)
45 47 BR_PROPERTY(int, left, -15)
46 48 BR_PROPERTY(int, top, -25)
47 49 BR_PROPERTY(int, right, 15)
48 50 BR_PROPERTY(int, bottom, 5)
  51 + BR_PROPERTY(float, factor, 0)
49 52  
50 53 void project(const Template &src, Template &dst) const {
51 54 dst = src;
52 55 QList<QRectF> rects = src.file.rects();
  56 + if (factor) {
  57 + QRectF orig = rects[index];
  58 + float scaledArea = factor*orig.width()*orig.height();
  59 + float scaledWidth = sqrt(scaledArea*(orig.width()/orig.height()));
  60 + QRectF scaled(0, 0, scaledWidth, scaledWidth/(orig.width()/orig.height()));
  61 + scaled.moveCenter(orig.center());
  62 + rects.replace(index, scaled);
  63 + dst.file.setRects(OpenCVUtils::toRects(rects));
  64 + return;
  65 + }
  66 +
53 67 QRectF rect = rects[index].adjusted(left, top, right, bottom);
54 68 rects.replace(index, rect);
55 69 dst.file.setRects(OpenCVUtils::toRects(rects));
... ...