METHOD OF CONTROLLING DIGITAL IMAGE SIGNAL PROCESSING APPARATUS AND DIGITAL IMAGE SIGNAL PROCESSING APPARATUS OPERATED BY THE SAME
An exemplary digital image signal processing apparatus which performs image signal processing on an input image to generate a captured image includes first and second displays. The digital image signal processing apparatus may be operated by a method in which the first display displays a first image corresponding to the input image, an exposure correction is performed on the input image to generate a second image, and the second display displays the second image. An exposure determiner may determine an exposure degree of the first image, a gain may be determined according to the exposure degree, and the exposure correction may be performed by applying the gain to the first image.
1 . A method of controlling a digital image signal processing apparatus which performs image signal processing on an input image to generate a captured image and comprises first and second displays, comprising:
displaying a first image corresponding to the input image on the first display;
performing an exposure correction on the input image to generate a second image; and
displaying the second image on the second display.
2 . The method of claim 1 , further comprising:
generating a first image signal corresponding to the input image;
applying a gain to the first image signal to generate a second image signal;
displaying the first image corresponding to the first image signal on the first display; and
displaying the second image corresponding to the second image signal on the second display.
3 . The method of claim 2 , further comprising:
determining an exposure degree of the first image signal; and
determining a gain according to the exposure degree of the first image signal.
4 . The method of claim 1 , further comprising:
generating a first image signal corresponding to the input image;
applying a gain to the first image signal to generate a second image signal;
reading the gain;
reversely applying the gain to the second image signal to generate a third image signal;
displaying the first image corresponding to the third image signal on the first display; and
displaying the second image corresponding to the second image signal on the second display.
5 . The method of claim 4 , further comprising:
determining an exposure degree of the first image signal; and
determining a gain according to the exposure degree of the first image signal.
6 . The method of claim 1 , further comprising:
generating a first image signal corresponding to the input image;
applying a gain to the first image signal to generate a second image signal;
reading the gain;
determining lamp brightness of the first display corresponding to the read gain;
displaying the first image corresponding to the second image signal and the determined lamp brightness on the first display; and
displaying the second image corresponding to the second image signal on the second display.
7 . The method of claim 6 , further comprising:
determining an exposure degree of the first image signal; and
determining a gain according to the exposure degree of the first image signal.
8 . The method of claim 6 , wherein the greater the gain is, the dimmer the lamp brightness is adjusted.
9 . The method of claim 6 , wherein the first display comprises a non-self-light emission type panel.
10 . The method of claim 1 , wherein the first and second displays respectively display the first and second images in a live view mode.
11 . The method of claim 10 , wherein the first and second displays respectively display the first and second images in a manual mode.
12 . A digital image signal processing apparatus for performing image signal processing on an input image to generate a captured image, comprising:
a first display which displays a first image corresponding to the input image; and
a second display which displays a second image generated by performing an exposure correction on the input image.
13 . The digital image signal processing apparatus of claim 12 , further comprising:
a first image signal generator which generates a first image signal; and
a gain applier which applies a gain to the first image signal to generate a second image signal,
wherein the first display displays the first image corresponding to the first image signal, and the second display displays the second image corresponding to the second image signal.
14 . The digital image signal processing apparatus of claim 13 , further comprising:
an exposure determiner which determines an exposure degree of the first image signal; and
a gain determiner which determines a gain according to the exposure degree determined by the exposure determiner,
wherein the gain applier applies the gain determined by the gain determiner.
15 . The digital image signal processing apparatus of claim 12 , further comprising:
a first image signal generator which generates a first image signal;
a gain applier which applies a gain to the first image signal to generate a second image signal;
a gain reader which reads the gain; and
a gain reverse applier which reversely applies the gain to the second image signal to generate a third image signal,
wherein the first display displays the first image corresponding to the third image signal, and the second display displays the second image corresponding to the second image signal.
16 . The digital image signal processing apparatus of claim 15 , further comprising:
an exposure determiner which determines an exposure degree of the first image signal, and
a gain determiner which determines a gain according to the exposure degree determined by the exposure determiner,
wherein the gain applier applies the gain determined by the gain determiner.
17 . The digital image signal processing apparatus of claim 12 , further comprising:
a first image signal generator which generates a first image signal;
a gain applier which applies a gain to the first image signal to generate a second image signal;
a gain reader which reads the gain; and
a lamp brightness determiner which determines lamp brightness of the first display corresponding to the read gain,
wherein the first display displays the first image corresponding to the second image signal and the determined lamp brightness, and the second display displays the second image corresponding to the second image signal.
18 . The digital image signal processing apparatus of claim 17 , further comprising:
an exposure determiner which determines an exposure degree of the first image signal, and
a gain determiner which determines a gain according to the exposure degree determined by the exposure determiner,
wherein the gain applier applies the gain determined by the gain determiner.
19 . The digital image signal processing apparatus of claim 17 , wherein the first display comprises a non-self-light emission type panel.
20 . The digital image signal processing apparatus of claim 12 , wherein the first and second displays respectively display the first and second images in a live view mode.