foundPatternCross(stateCount) {
			const moduleSize = this.moduleSize;
			const maxVariance = moduleSize / 2.0;
			for (let i = 0; i < 3; i++) {
				if (Math.abs(moduleSize - stateCount[i]) >= maxVariance) {
					return false;
				}
			}
			return true;
		}
@param stateCount count of black/white/black pixels just read
@return true iff the proportions of the counts is close enough to the 1/1/1 ratios
        used by alignment patterns to be considered a match