1. In a light field image capture device, the light field image capture device including at least one sensor and processing circuitry, the processing circuitry configured to process captured light field image data to generate visual output, a method for reducing the size of captured light field image data, the method comprising: capturing light field image data at the at least one sensor, the light field image data representing output of a microlens array; determining a read-out mode of the at least one sensor; pre-processing the captured light field image data in a manner that varies spatially based on light field coordinates of pixels on the at least one sensor and in accordance with the determined read-out mode to reduce the data size of the captured light field image data; and sending the pre-processed captured light field image data to the processing circuitry.