Brighter and Bigger > How to use

How to Use

1. Adjust Exposure and Focus
Tap on screen for adjusting exposure and focus. (iPod Touch 4G and iPad 2 are not supporting the point specific focusing, only exposure.)
2. Adjust Brightness (5 to +5)
"Brighter Dial" on the left bottom changes brightness. The smaller value means darker and the larger value means brighter. 5% of brightness is changed per value of 1.
3. Adjust Contrast (0 to +10)
"Clearer Dial" on the right bottom changes contrast. Clearer by larger value.
4. Adjust Magnification (1.0 to 5.0, 100 to 500%)
"Bigger Dial" on the bottom changes magnification. You can also change this value by two finger pinch.
5. Repeat 2 to 4 until comfortable brightness, contrast and magnification. It surely becomes legible.
6. All dials, buttons and texts disappear in 10 seconds without touch. You can tap the screen to display them again.

Freeze Button
Push to freeze moving images and displays a still image. Push again to release. You can also adjust a still image brighter, bigger and clearer by dials. A still image can be panned by panning gesture (tap and move a finger on screen).
Brightness Reverse Button
Push to reverse brightness. A black letter on white ground is changed to a white letter on black ground. This mode is suitable especially for the person of the cataract.
Torch Button
Push to ON/OFF the torch light. (If supported.)
Save Button
Push to store a displayed image to the "Photo Album".
Reset all parameters
Double tapping the screen to reset all parameters to initial conditions.

This application software is developed by a color science researcher. The brightness and the contrast are calculated by nonlinear functions with keeping chromaticity on the uniform color space (a color space in which equal distances represent equal visually perceived color differences are).