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It is essential that the digital images of your artwork are of the highest professional quality. The standards that apply to traditional slide documentation also apply to the digital slide format.
To submit an application through CGO, please format/size your images as follows:
1920 pixels x 1920 pixels
Baseline JPEG (Do not use progressive JPEG format)
Please size your image so the final compressed file is no more than 1.8 MB in size. On average, your image will be roughly 1.2 MB. Larger is not necessarily better. Please consult a professional vendor to determine if compression for your artwork is needed.
CGO will automatically rename your files
Please size your image to be 1920 pixels on both edges. If your image is not square, please mask your image with black to bring your image to 1920 x1920 pixels. Note: No other size will be accepted for jury use.
Download a template to lay your images in. Note: File will open in a new window. When image appears, right-click and select "Save Picture As."
For Horizontal Images:
Format with black horizontal bands on the top and bottom
For Vertical Images:
Format with black vertical bands on the left and right
Please see Figure 1 below to observe the horizontal proportions of the available image space of a digitally projected image.
If the CGO system were to allow artists to submit images of any height and width within the confines of the standard digital-projector image space, images of horizontal works of art would have more projected space available to them than would vertically composed works of art. As a result, horizontal images would take up more of the available image space, and this could advantage horizontal works in the jurying process. Figure 2 is an example of how a horizontally composed work could use virtually all of the available digital-projector display space.
Figure 3 illustrates how a vertical image would be disadvantaged in this system without application of the squaring process. The art works displayed in Figure 2 and Figure 3 have the same dimensions as the original works of art, however, without squaring, they are vastly different in size when projected
Squaring images removes the space advantage that horizontally formatted art works receive in this system. Figure 4 represents the squared projected image of a horizontal work of art, and Figure 5 represents the squared projected image of a vertical work of art. Each figure is placed on a field of the projectable image space that has been reduced to a squared field with dimensions of 1920 by 1920 pixels. In addition, each image has been masked in black to eliminate any white space that could surround a projected image. The black masking also allows the image to pop out, as the black fades into the dark background during projection. The result is a fair and scaled representation of all projected images.
Use a good 4 or 5 megapixel digital camera. Do not use a camera below 3.2 megapixels. Always use a tripod to steady your shot. If you choose to take your picture on film and digitize from a negative you need to use good color film like Fuji Provia 100F (also called RDP-III) or Kodak Ektachrome 100 Professional or Kodak Elite Chrome 10.
Lighting affects films at varying degrees. You may use a daylight film or tungsten film depending on the lighting scheme of your photograph.
Daylight films are color balanced to daylight and electronic flash light. Daylight film is commonly available at any supermarket or photography shop.
Tungsten films require lighting from incandescent (or tungsten) light sources and are harder to find. They are not available in a 35mm negative and can be found in specialty photography stores rather than at your local supermarket. The packaging for tungsten film is differentiated from daylight films by a T after the film speed, i.e. 64T.
Remember that if you are using daylight film you should eliminate other light sources, such as incandescent lights or fluorescent lights. These other light sources may "contaminate" the illumination. In the same respect when using tungsten film, you should not let other light sources like daylight or fluorescent light 'contaminate' the illumination.
Following are generic instructions for reducing the resolution (making the picture smaller) in a number of photo-editing programs. The steps may vary slightly depending on the program.
Click here for more Photoshop Tips from professional photographer Larry Berman.
Taking a digital photograph instead of scanning a hard copy photograph or slide to digital format will yield the best results. Use at least a 3.2 megapixels camera. For best results we advise using a 4 or 5 megapixel camera. Use a camera that will allow you to save the image in a lossless format such as TIFF or RAW. This will give you the best opportunity to resize your image without losing detail. Once you resize your RAW file, you will need to convert that file into a JPEG. The JPEG format will allow that file to be uploaded into a Web application like CGO. Try to use a first generation JPEG if possible. If your digital camera only captures images in the JPEG format, do not resize the JPEG--convert it to a TIFF before doing any resizing. This way, you will keep the maximum detail possible.
Set your white balance on your camera against a neutral white source to give you a "pure" white color. Follow the instructions that came with your camera to set your white balance correctly.
Traditional slides can be scanned and converted to digital format at most full service photo labs. It is better to have the original slide scanned because the color and detail has not been diminished from duplication.
Most photo labs offer picture CD's that come with basic photo editing software(KODAK Picture CD) that saves images as JPEGs.
You can also purchase a 35 mm scanner designed for scanning slides and digitize the image on your home computer.
Hiring a professional photographer with photo editing software knowledge costs more but yields the best results.
Visit the Web sites below to see examples of professional vendors: