A trend will be visible when its seen with fast and slow line cross
UP trend: HHV_fastline = HHV Slowline and LLVfastline crossover LLVSlowline
DOWN trend: HHV_fastline crossunder HHV Slowline and LLVfastline !=LLVSlowline
Attempted to plot the same with multiple options to choose fastline length, slowline length, .
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.