Image processing device, image signal processing chip, and ISP chain configuring method

摘要

An image processing device and an ISP chain constructing method are provided which can arbitrarily reconstruct an ISP chain structure. The image processing device is connected to an image sensor, performs a signal process and includes: N (where N is a natural number of equal to or greater than 2) ISP (Image Signal Processing) functional modules that each perform a predetermined image signal process on one, which is determined by an input selection signal, of data output from the image sensor and the other ISP functional modules; and an output module that outputs one, which is determined by an output selection signal, of output data output from the N ISP functional modules as final output data. Accordingly, it is possible to reconstruct an ISP chain even after the ISP chain is embodied as a chip, thereby providing image processing functions optimized for various product applications.

主权项

1. An image processing device which is connected to an image sensor and performs a signal process, the image processing device comprising:
N (where N is a natural number of equal to or greater than 2) ISP (Image Signal Processing) functional modules that are each connected to the image sensor and to each of other N−1 functional modules, the N ISP functional modules configured to perform a predetermined image signal process on one, which is determined by an input selection signal, of data output from the image sensor and the other N−1 ISP functional modules; and an output module that outputs one, which is determined by an output selection signal, of output data output from the N ISP functional modules as final output data, wherein an operating order of the N ISP functional modules is changeable according to a predetermined order or in an order input by a user depending on product applications, and wherein each of the N ISP functional modules includes: a multiplexer connected to the other N−1 ISP functional modules and that receives the input selection signal and respective ISP data outputs from the other N−1 ISP functional modules and, in response to the input selection signal, selects one from among the respective ISP data outputs; and a functional block connected to the multiplexer and that performs a predetermined image signal process on the selected one of the respective ISP data outputs.