Illusion knitting

Marilyn Monroe Illusion

Illusion knitting or shadow knitting is a form of textile art, in which the knitting is viewed as simply narrow stripes from one angle, and as an image when viewed from another angle. Illusion knitting has been recognised as an art form since 2010, largely due to the advances made by Steve Plummer who has created several large and detailed pieces. Similar effects occur in Tunisian crochet.

Method

Illusion knitting uses two colours of yarn and is worked in stripes of two rows in each colour. Illusion knitting is based on the flat smooth stocking stitch and the raised garter stitch. It is this combination of textures which allows the image to be seen only from the right angle.

Traditionally, charts for illusion knitting use four rows of knitting symbols to represent the stitches which the designer wishes to be seen. This makes the charts elongated and difficult to use for anything other than simple blocks of colour. These four rows make up two pairs where, in most cases, one pair is considered the opposite of the other. Where one pair has knit stitches, the other pair has purl stitches.

Viewing

For an illusion artwork to be effective it has to be able to be seen from a variety of angles. Generally, illusions that are designed to be viewed from the side work best. If the illusion hangs on the wall you can move around it and see the image appearing and disappearing. The illusion can be viewed equally well from the other side. An illusion designed to be seen from the bottom would have to hang very high on the wall and you would probably never be able to see it from directly in front. This type of illusion is best used on a flat surface.

Five views of Einstein Illusion
 
 
 
 
 

Creating

Charting

Detail of chart showing Marilyn Monroe's eye

Steve Plummer is a knitting artist who previously specialised in knitting wall-hangings and other items, primarily for the teaching of Mathematics. He approached illusion knitting from a mathematician's point of view and started to use a different method of charting.

These charts use a square grid and are created by laying the grid over an existing image then colouring in all the stitches that need to be seen as raised bumps. Throughout the charting process it is still possible to see the original image and there is no distortion. These charts are different because they allow the four rows of the traditional method to be condensed into two different rows of squares. They can be used for creating very simple images, if required, but also allow much more flexibility to create works of art. The old method allowed areas to show either light or dark; the new method allows for intermediate shading, still using just two colours and only one colour in each stripe. The amount of shading depends on the number of stitches that are raised compared to the number that are lowered.

Some of Steve's illlusions are quite large. His Mona Lisa is significantly bigger than the real thing. The size is dictated by the smallest detail he wants to see, which, in a portrait, may be the centre of the eye. This then has to become one raised bump (garter stitch) on the knitting and the ridge in front of it must lie flat so you can see over it (stocking stitch). The rest of the image is built around this detail.

The charting process takes perseverance, time and an amount of three-dimensional awareness. A chart can take up to 100 hours to produce. It is a process that can be learned by people with a little artistic ability and a lot of patience.

Making and displaying

Yarn: Illusions can be made using any smooth yarn in two contrasting colours. The same chart will work for fine cotton and for thick chunky yarn though the thicker yarn will create a much bigger piece of knitting and you may have to stand further back to get the best effect.
Needles: The clearest images are created by knitting on needles slightly thinner than would normally be used. If the art work is to be a bed-cover or wearable it needs to remain soft and flexible so should not be knitted too tightly.
Markers: It is essential to be able to keep your place on the chart so it helps to use markers to match to the grid lines, every 10 or 20 stitches.
Mounting pictures: If a piece is to hang on the wall it can be mounted on a board which will ensure that it remains flat. It should be very slightly stretched to prevent sagging.
Mounting wearables: Wearables, such as shawls, can be displayed on a bar with a strip of Velcro attached to it. They are easily removed for wearing.

Combining with other knitting techniques

It is possible to combine illusion knitting with other textile techniques. Those listed below have been used successfully. There are probably many other possibilities.

Intarsia can be used to introduce extra colours, as in the illusion of Marilyn Monroe, which was inspired by Andy Warhol's screen prints. It has four different colours. The same method of charting is used as only two colours occur in any one section, although the four sections are knitted as one piece.
Modular knitting lends itself to illusions as small areas can be made separately then combined.
Mitred knitting works well. The charting method needs to be adapted slightly to accommodate the different directions of the knitting.

Geometric Illusion Art

Seen from an angle the cushions look alike
Seen from in front they are not the same

Illusion Art does not have to be pictorial. It also lends itself to geometric works. Sometimes the same illusion can be created in different ways. It is less much successful for abstract art. The brain needs to be able to perceive an image and fill in the gaps, which would be extremely difficult with an abstract design.

Exhibitions

Illusion Knitting Art is very new, the earliest exhibitions being held in 2010.

Steve Plummer and Pat Ashforth

Tanja Boukal

Artists

Artists working in this field include Steve Plummer, Pat Ashforth, Brent Annable, Tanja Boukal, Nelleke Kool, Julie Rosencrans, Lisa Lehner and George Maffett. Some of these artists have experimented with using computer programs to speed up the design process. So far, no program has been as good as the artist's eye. George Maffett uses a Lego 3-D modelling program to assist in the process.

References

    External links

    This article is issued from Wikipedia - version of the Monday, May 04, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.