IOU loss function

Joseph Redmon

2015-04-24 989ab8c38a02fa7ea9c25108151736c62e81c972

 src/crop_layer.c

@@ -7,10 +7,10 @@
    int h = layer.crop_height;
    int w = layer.crop_width;
    int c = layer.c;
    return float_to_image(h,w,c,layer.output);
    return float_to_image(w,h,c,layer.output);
}

crop_layer *make_crop_layer(int batch, int h, int w, int c, int crop_height, int crop_width, int flip)
crop_layer *make_crop_layer(int batch, int h, int w, int c, int crop_height, int crop_width, int flip, float angle, float saturation, float exposure)
{
    fprintf(stderr, "Crop Layer: %d x %d -> %d x %d x %d image\n", h,w,crop_height,crop_width,c);
    crop_layer *layer = calloc(1, sizeof(crop_layer));
@@ -19,11 +19,15 @@
    layer->w = w;
    layer->c = c;
    layer->flip = flip;
    layer->angle = angle;
    layer->saturation = saturation;
    layer->exposure = exposure;
    layer->crop_width = crop_width;
    layer->crop_height = crop_height;
    layer->output = calloc(crop_width*crop_height * c*batch, sizeof(float));
    #ifdef GPU
    layer->output_gpu = cuda_make_array(layer->output, crop_width*crop_height*c*batch);
    layer->rand_gpu = cuda_make_array(0, layer->batch*8);
    #endif
    return layer;
}
@@ -36,6 +40,8 @@
    int flip = (layer.flip && rand()%2);
    int dh = rand()%(layer.h - layer.crop_height + 1);
    int dw = rand()%(layer.w - layer.crop_width + 1);
    float scale = 2;
    float trans = -1;
    if(!state.train){
        flip = 0;
        dh = (layer.h - layer.crop_height)/2;
@@ -52,7 +58,7 @@
                    }
                    row = i + dh;
                    index = col+layer.w*(row+layer.h*(c + layer.c*b)); 
                    layer.output[count++] = state.input[index];
                    layer.output[count++] = state.input[index]*scale + trans;
                }
            }
        }