1. An image processing method comprising the acts: capturing imagery with a camera portion of a mobile system, the system also including a processor controlled by configuration instructions stored in a memory; selecting a first recognition process to apply to the captured imagery, from among several recognition processes that the system is equipped to apply, said selection of the first recognition process being based on context information rather than on express user instruction; launching the selected first recognition process, employing said processor, to discern information about a subject depicted in the captured imagery; receiving first data, after said selected first recognition process has been launched, said first data comprising (a) user input data indicating express or implied user encouragement or discouragement of said first recognition process by the user, and/or (b) a detection state metric, representing a quantified likelihood that a recognition goal sought by the first recognition process will be reached; and allocating increased or decreased resources to said first recognition process based on said received first data, said allocation of increased resources being apart from increased resource usage due to any increasing base complexity of successive stages of the selected first recognition process.