Display control apparatus and control method thereof

A method of controlling a display control apparatus, the apparatus causing an image based on an image file stored in a recording medium to be displayed in a display device, and the method comprising the steps of:

• analyzing the image file to be displayed to determine image data of a main image included in the image file and furthermore determine whether or not image data of a sub image having a dynamic range different from the dynamic range of the main image is included in the image file;
• converting the dynamic range of the image;
• and
• carrying out control for outputting the image data included in the image file to the display device on the basis of a result of the analysis carried out in the step of analyzing,
• wherein in the step of carrying out control:
• the image data of the main image is output to the display device in the case where the display device supports the dynamic range of the main image in the image file;
• the image data of the sub image is output to the display device in the case where the display device does not support the dynamic range of the main image in the image file and the image data of the sub image is included in the image file;
• and
• the step of converting is used to convert the image data of the main image into image data having a dynamic range supported by the display device, and the image data obtained through the conversion is output to the display device, in the case where the display device does not support the dynamic range of the main image in the image file and the image data of the sub image is not included in the image file.

A non-transitory computer-readable storage medium storing a program which, when read and executed by a computer, causes the computer to execute the steps of a method of controlling a display control apparatus, the method comprising the steps of:

• analyzing an image file to be displayed to determine image data of a main image included in the image file and furthermore determine whether or not image data of a sub image having a dynamic range different from the dynamic range of the main image is included in the image file;
• converting the dynamic range of the image;
• and
• carrying out control for outputting the image data included in the image file to the display device on the basis of a result of the analysis carried out in the step of analyzing,
• wherein in the step of carrying out control:
• the image data of the main image is output to the display device in the case where the display device supports the dynamic range of the main image in the image file;
• the image data of the sub image is output to the display device in the case where the display device does not support the dynamic range of the main image in the image file and the image data of the sub image is included in the image file;
• and
• the step of converting is used to convert the image data of the main image into image data having a dynamic range supported by the display device, and the image data obtained through the conversion is output to the display device, in the case where the display device does not support the dynamic range of the main image in the image file and the image data of the sub image is not included in the image file.