Design my Privacy exhibition at MOTI. DCT: Legibility : 無料・フリー素材/写真
Design my Privacy exhibition at MOTI. DCT: Legibility / Rosa Menkman
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | A transparent acrylic layer on top of the first DCT text:The legibility of an encrypted message does not just depend on the complexity of the encryption algorithm, but also on the placement of the data of the message. The Discreet Cosine Transform is a mathematical technique. In the case of the JPEG compression, a DCT is used to describe a finite set of patterns, called macroblocks, that could be described as the 64 character making up the JPEG image, adding lumo and chroma values as ‘intonation’. If an image is compressed correctly, its macroblocks become ‘invisible’. The incidental trace of the macroblocks is generally ignored as artifact or error. Keeping this in mind, I developed DCT. DCT uses the esthetics of JPEG macroblocks to mask its secret message as error. The encrypted message, hidden on the surface of the image is only legible by the ones in the know. myfriendsandifindl//// egibilitysoutterlyf// ascinatingthatth ingscannotbeil// legibleenoughi// nmyworkiwant/// tomakereada bilityasil/l egibleaspo/ ssible,toe/ xperienceit asintens// ivelyas// possible/ // |
| 撮影日 | 2015-10-03 16:39:07 |
| 撮影者 | Rosa Menkman , amsterdam, Netherlands |
| 撮影地 | |
| カメラ | iPhone 5 , Apple |
| 露出 | 0.067 sec (1/15) |
| 開放F値 | f/2.4 |