What is the difference between portrait painting and ink painting?

1 Different materials? Ink-jet printing generally uses ink-jet cloth, and photography generally uses adhesive photographic paper PP paper and the like.

Two different inks? Ink painting is generally oily ink, which has better sunscreen and waterproof performance. Photos are generally water-based ink, which has poor sun protection and water resistance.

3 different uses? Ink painting is basically used for outdoor advertising, and photos are mostly used indoors.

4 Different accuracy? Because most of the painting pictures are more than ten meters away from the viewing distance, the painting accuracy can be appropriately lower, and 30 pixels/inch is basically good; Because photos are viewed indoors at close range, the minimum pixel requirement is 72 pixels/inch.

Portrait, in China's original meaning, is to draw portraits of people. It is the traditional name of figure painting in China. It requires people to be similar to themselves in form and spirit. Simply put, it's called portrait when painting.

Nowadays, photo photography refers to artistic photography, commonly known as artistic photo album, and can also refer to photos. But like the original definition, photos strive to achieve the realm of "truth". Therefore, many commercial photos now, as well as some photos that have to be superficial, empty and meaningless, and have been seriously retouched for the sake of "perfection" in appearance, are also called portraits, but they have long run counter to the original intention of portraits.