1. Email address:

2. Are you an amatuer photographer, i.e taking photograph is your hobby? YES NO

3. Have you ever used photo processing software to enhance the contrast of a photo? YES NO

4. Race (Malay, Chinese, Indian, etc.):

5. Photo A~I are the results of original photo after applying various contrast enhancement techniques. Click the thumbnail photo to choose the result which you observe to have the CLEAREST visibility. If you think none of the result is clearer than the original photo, click the original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo

		A B C D E F G H I
		No Selection Yet I prefer result A I prefer result B I prefer result C I prefer result D I prefer result E I prefer result F I prefer result G I prefer result H I prefer result I I prefer original photo