void apply_threshold(const double threshold, Image& image)
{
const CanvasProperties& props = image.properties();
for (size_t y = 0; y < props.m_canvas_height; ++y)
{
for (size_t x = 0; x < props.m_canvas_width; ++x)
{
Color3f color;
image.get_pixel(x, y, color);
if (color[0] < threshold)
color.set(0.0f);
else color.set(1.0f);
image.set_pixel(x, y, color);
}
}
}
void ColorSource::initialize_from_color3(const ColorEntity& color_entity)
{
Color3f color;
const ColorValueArray& values = color_entity.get_values();
if (values.size() == 1)
color.set(values[0]);
else if (values.size() == 3)
color = Color3f(values[0], values[1], values[2]);
else
{
m_scalar = ScalarInput(0.0);
m_linear_rgb.set(0.0f);
m_spectrum.set(0.0f);
return;
}
m_scalar = static_cast<double>(color[0]);
switch (color_entity.get_color_space())
{
case ColorSpaceLinearRGB:
m_linear_rgb = color;
break;
case ColorSpaceSRGB:
m_linear_rgb = srgb_to_linear_rgb(color);
break;
case ColorSpaceCIEXYZ:
m_linear_rgb = ciexyz_to_linear_rgb(color);
break;
default:
assert(!"Invalid color space.");
break;
}
m_spectrum = m_linear_rgb;
}
