Once he completed his work at the ministry, Dr. Asefi moved on to the National Gallery, where he altered 80 paintings over three months.
Over the five years of Taliban rule, he painstakingly altered 120 oil paintings, blotting out the offending creatures with watercolor.
The show also includes sumptuous, wildly improvised paintings on velvet; an eerie landscape made by subtly altering an antique Asian theater backdrop; and a worn green tarp bearing Latinate words spelled in big, white block letters.
The colors of all Renaissance paintings have altered to some degree over time, especially the blues, which often become formless black shapes with no visible definition.
Slightly altering the gallery design to make it more enclosed, Mr. Albenda has installed six medium-size paintings.
Look at his adaptations of old master paintings, for instance, and you can clearly see how he retained the characteristics of the originals while altering their focus, size or structure.
A photograph of a painting can, for example, alter colours and increase contrast, making bad paintings look great and good paintings look like crap.
It has been used to transfer cartoons onto murals, to transfer preparatory drawings onto canvas paintings, and to alter the scale of any work in the same media.
Olitski often relied on a small group of people to help him assess a group of paintings, or to alter them.
One of Koenig's newer and better-known artists is Alexis Rockman, who enjoyed some success in the eighties and nineties with his colorful and ecologically precise paintings of habitats altered by global warming.
