The frame of a picture fulfils several functions: It is both a border and a transition to the surroundings. It emphasises the qualities in the picture, highlights its colourfulness and optically enhances its depth. In the process, the picture frame must always remain in the background and it must not detract attention from the picture. A good picture frame attracts attention, immediately directs it to the picture and concentrates it there.
In the same way as the setting of a valuable jewel, the frame encloses the artwork. It is also the intermediary or transitional area between the reality of the surroundings and the concept of the depiction.
Last but not least, the frame should create harmony with the surroundings and the arrangement of a space.
Finally, the picture frame offers protection and provides the technical possibility of secure wall mounting.