In HSV space, the red color wraps around 180. So you need the H values to be both in [0,10] and [170, 180]. Try this: #include <opencv2\opencv.hpp> using namespace cv; int main() { Mat3b bgr = imread(“path_to_image”); Mat3b hsv; cvtColor(bgr, hsv, COLOR_BGR2HSV); Mat1b mask1, mask2; inRange(hsv, Scalar(0, 70, 50), Scalar(10, 255, 255), mask1); inRange(hsv, Scalar(170, … Read more
Here is a standalone function: function rgb2hsv (r, g, b) { let rabs, gabs, babs, rr, gg, bb, h, s, v, diff, diffc, percentRoundFn; rabs = r / 255; gabs = g / 255; babs = b / 255; v = Math.max(rabs, gabs, babs), diff = v – Math.min(rabs, gabs, babs); diffc = c => … Read more
Solution 1 Use renderingMode(.template) struct MainView: View { var body: some View { TabView { LoginView().tabItem { VStack { Text(“Login”) Image(“login”).renderingMode(.template) } } HomeView().tabItem { VStack { Text(“Home”) Image(“home”).renderingMode(.template) } } }.accentColor(.orange) } } Solution 2 Make tabItem type enum TabViewItemType: String { case login = “login” case home = “home” case search = “search” … Read more
You can set the Background: <Separator Background=”Red”/>
You have a couple of options here. You can tweak your use of the color parameter, or you can use the palette parameter. palette Using palette would arguably be the cleaner approach. Ideally, you would make only one call to lineplot when using palette–with the use of hue parameter: np.random.seed(42) y0 = pd.DataFrame(np.random.random(20), columns=[‘value’]) y1 … Read more
You would need to use rgba to specify the alpha channel as well, rgb ignores the transparency. import plotly trace = plotly.graph_objs.Scatter(x=[30,45],y=[3000,3000], fill=”tozeroy”, fillcolor=”rgba(26,150,65,0.5)”, mode=”none”) plotly.offline.iplot(plotly.graph_objs.Figure(data=[trace]))
If you don’t want to use a for loop (which can be very slow for large lists) You can use the scatter command as is with an RGB color list, but you need to specify the colors as a vector of RGB (or RGBA) values between 0 and 1 X = [0, 1, 2] Y … Read more
Here’s code making use of Pillow and Scipy’s cluster package. For simplicity I’ve hardcoded the filename as “image.jpg”. Resizing the image is for speed: if you don’t mind the wait, comment out the resize call. When run on this sample image, it usually says the dominant colour is #d8c865, which corresponds roughly to the bright … Read more
I checked your XAML, it works fine – e.g. both labels have a gray foreground. My guess is that you have some style which is affecting the way it looks… Try moving your XAML to a brand-new window and see for yourself… Then, check if you have any themes or styles (in the Window.Resources for … Read more