Abstract: An apparatus for generating text from an image may comprise: a memory configured to store at least one instruction; and a processor configured to execute the at least one instruction, wherein the processor is further configured to generate encoding information for an image based on the image and extract text information related to content of the image based on a degree of association with the encoding information.

Abstract: After receiving a web page containing several templates from a web server, a mobile device converts an original color in a selected template of the web page into a new color. Then the mobile device displays the color-converted web page on a display unit which may be formed of OLED. Colors of a background template and a text template can be converted into a low brightness color such as black and a high brightness color such as white, respectively. Therefore, when such a web page is displayed on a mobile device, power consumption is effectively reduced. In another embodiment, the web server may perform a color conversion before sending web pages to the mobile device.