<P> In art, foil imaging is a printmaking technique made using the Iowa Foil Printer, developed by Virginia A. Myers from the commercial foil stamping process . This uses gold leaf and acrylic foil in the printmaking process . </P> <P> Printmakers apply color to their prints in many different ways . Some coloring techniques include positive surface roll, negative surface roll, and A la poupée . Often color in printmaking that involves etching, screenprinting, woodcut, or linocut is applied by either using separate plates, blocks or screens or by using a reductionist approach . In multiple plate color techniques, a number of plates, screens or blocks are produced, each providing a different color . Each separate plate, screen, or block will be inked up in a different color and applied in a particular sequence to produce the entire picture . On average about three to four plates are produced, but there are occasions where a printmaker may use up to seven plates . Every application of another plate of color will interact with the color already applied to the paper, and this must be kept in mind when producing the separation of colors . The lightest colors are often applied first, and then darker colors successively until the darkest . </P> <P> The reductionist approach to producing color is to start with a lino or wood block that is either blank or with a simple etching . Upon each printing of color the printmaker will then further cut into the lino or woodblock removing more material and then apply another color and reprint . Each successive removal of lino or wood from the block will expose the already printed color to the viewer of the print . Picasso is often cited as the inventor of reduction printmaking, although there is evidence of this method in use 25 years before Picasso's linocuts . </P> <P> The subtractive color concept is also used in offset or digital print and is present in bitmap or vectorial software in CMYK or other color spaces . </P>

Describe the technique the artist used in the image above