An image capture apparatus includes a quantization precision selection device and an image data correction device. The quantization precision selection device selects a first quantization precision when an operation for reading out image data from an image sensor is performed a plurality of times for one exposure operation and selects a second quantization precision that is lower than the first quantization precision when an operation for reading out the image data from the image sensor is performed once for one exposure operation. The image data correction device performs correction processing of the image data using correction data having one of the first and second quantization precisions selected by the quantization precision selection device.