If you think Governor Fukui will declare an official end to quantitative easing, bet on the double top holding. If say the Chinese real estate market suddenly collapses, bet on a channel continuation. An immediate yuan float would probably produce a whipsaw breakdown-breakout.
Whether any technical pattern results in a channel or a trend reversal depends on the count. All technical patterns are simply geometric manifestations of an internal count.
Since I can't see the beginning of the movement in your graphic, I can't say whether it's a top or not...