Better renders (#14)

* trying other rectangles

* example renders on readme

* image sizes

* Update README.md

* add cars

* Update README.md

.drone.yml

@@ -7,7 +7,7 @@ platform:
 
 steps:
 - name: build
-  image: julia:1.3
+  image: julia:1.3.0-rc2
   commands:
      - uname -a
      - julia --project=. -e 'using Pkg; Pkg.build(); Pkg.test(coverage=true)'
@@ -23,7 +23,7 @@ platform:
 
 steps:
 - name: build
-  image: julia:1.3
+  image: julia:1.3.0-rc2
   commands:
       - uname -a
       - julia --project=. -e 'using Pkg; Pkg.build(); Pkg.test(coverage=true)'

README.md

@@ -4,7 +4,12 @@ Currently only supports loading [YOLOv2-tiny](https://github.com/pjreddie/darkne
 
 The majority of this is made possible by Yavuz Bakman's great work in https://github.com/Ybakman/YoloV2
 
-**Docs**
+<p float="left">
+<img src="examples/boat.png" alt="drawing" width="200"/>
+<img src="examples/bikes.png" alt="bikes" width="200"/>
+<img src="examples/cowcat.png" alt="cowcat" width="200"/>
+<img src="examples/cars.png" alt="cars" width="200"/>
+</p>
 
 See below for examples or ask questions on [![Join the julia slack](https://img.shields.io/badge/slack-%23machine--learning-yellow)](https://slackinvite.julialang.org)
 
@@ -52,11 +57,11 @@ res = model(vocloaded.imstack_mat);
 predictions = YOLO.postprocess(res, settings, conf_thresh = 0.3, iou_thresh = 0.3)
 ```
 
-### Testing a single custom image 
+### Testing a single custom image
 To pass an image through, the image needs to be loaded, and scaled to the appropriate input size.
 For YOLOv2-tiny that would be `(w, h, color_channels, minibatch_size) == (416, 416, 3, 1)`.
 
-`loadResizePadImageToFit` can be used to load, resize & pad the image, while maintaining aspect ratio and anti-aliasing during the resize process. 
+`loadResizePadImageToFit` can be used to load, resize & pad the image, while maintaining aspect ratio and anti-aliasing during the resize process.
 ```julia
 using YOLO
 ## Load once

src/makierendering.jl

@@ -13,16 +13,27 @@ function renderResult(img::Array{Float32}, predictions::Vector{YOLO.PredictLabel
     Makie.rotate!(scene, -0.5pi)
 
     for p in predictions
+        alpha = clamp(p.conf,0.5,1.0)
         col = cols[p.class]
-        rect = [p.bbox.y*img_h, p.bbox.x*img_w, p.bbox.h*img_h, p.bbox.w*img_w]
-        Makie.poly!(scene, [Rectangle{Float32}(rect...)], color=RGBA(red(col),blue(col),green(col),clamp(p.conf*1.3,0.2,0.6)))
+        pcol = RGBA(red(col),blue(col),green(col),alpha)
+        x = p.bbox.x*img_w
+        y = p.bbox.y*img_h
+        w = p.bbox.w*img_w
+        h = p.bbox.h*img_h
+        points = [
+            Point(y,x+w) => Point(y+h,x+w);
+            Point(y,x) => Point(y+h,x);
+            Point(y+h,x+w) => Point(y+h,x);
+            Point(y,x+w) => Point(y,x);
+            ]
+        Makie.linesegments!(points, linewidth = 8, color=pcol)
         name = get(settings.numsdic,p.class,"")
         conf_rounded = round(p.conf, digits=2)
         Makie.text!(scene, "$name\n$(conf_rounded)",
-             position = (rect[1], rect[2]),
+             position = (y+3, x+3),
              align = (:left,  :top),
-             colo = :black,
-             textsize = 6,
+             color = pcol,
+             textsize = 8,
              font = "Dejavu Sans"
          )
     end