Imaging apparatus and control method thereof

摘要

During shooting, first encoded image data based on image data obtained by performing a simplified development process on RAW image data is recorded together with a RAW image, and afterward, second encoded image data based on image data obtained by performing a high-quality development process on the RAW image data is generated and recorded. By estimating the data amount of the second encoded image data during shooting and reflecting an area based on this data amount on management information of the recording medium as an area for recording the second encoded image data, the area in the recording medium is ensured.

主权项

1. An imaging apparatus comprising:
an imaging unit; an image processing unit configured to acquire RAW image data by using image data obtained by the imaging unit; a development unit configured to apply a development process to the RAW image data by using a first development process and a second development process, wherein the second development process is for obtaining an image having higher quality than an image obtained by the first development process; an encoding unit configured to encode image data output from the development unit; an estimation unit configured to, based on one of:
(i) a data amount of the RAW image data; and(ii) a data amount of first encoded image data obtained by encoding first image data with the encoding unit, wherein the first image data is generated by applying the first development process to the RAW image data,estimate a data amount of second encoded image data to be obtained by encoding second image data with the encoding unit, wherein the second image data is generated by applying the second development process to the RAW image data;
a recording unit configured to record data in a recording medium; and a control unit configured to control the recording unit to record the RAW image data and the first encoded image data in the recording medium in response to a recording instruction, wherein the control unit ensures a recording area for the second encoded image data in the recording medium based on the estimated data amount of the second encoded image data estimated by the estimation unit, and the encoding unit controls the data amount of the second encoded image data based on the estimated data amount, wherein the control unit controls the recording unit to record the second encoded image data in the ensured recording area, and wherein, if the imaging apparatus is in a predetermined idle state, the control unit controls the development unit to apply the second development process to the RAW image data to generate the second image data, and controls the encoding unit to encode the generated second image data.