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Difference between revisions of "Publishing Pictures and Web Platform Particularities"
Publishing Pictures and Web Platform Particularities (view source)
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Keep in mind that specific editing is required to make a standard photograph, as it may be received in JPEG format, to a picture containing transparency. Special processing is carried out in image editors to convert a standard image into one that has a transparency or ALPHA channel, as is usually called. Editing requires that the resulting format and your presentation application support transparency in PNG, TARGA and other formats, for a successful use in your presentation software. | Keep in mind that specific editing is required to make a standard photograph, as it may be received in JPEG format, to a picture containing transparency. Special processing is carried out in image editors to convert a standard image into one that has a transparency or ALPHA channel, as is usually called. Editing requires that the resulting format and your presentation application support transparency in PNG, TARGA and other formats, for a successful use in your presentation software. | ||
=== Desktop Publishing === | |||
Using pictures to illustrate a text document that may be sent electronically as a PDF or printed is very common. Electronically shared documents frequently aim for a compact size, sacrificing image quality. More than 95% of a document's size is due to the image resolution and compression being used. Files intended for sharing through mail or web should have a size below 20 MB to be easily shared. High quality, editable or reference content will have a larger size and be disseminated through file sharing sites or internal means. | |||
A special note must be made for billboards and other materials that include photographs. The larger the size of the final format being intended for printing, the higher the resolution and image size of the original image should be. However, at no time should an image be artificially resized using resampling, generating a higher resolution image from a lower one. Resizing reduces the image quality the greater the difference between the initial and end image. It is better to leave resizing to the application that edits the intended document format. | |||
Photographs have a different colour and brightness level than it is possible to be handled by a printer and its inks or the printing medium. It is important to have very high quality, and particularly contrasting, vivid initial pictures from the camera. While editing images for higher contrast and a specific colour is advisable, such mitigations are only slight improvements that cannot fully compensate a poor initial picture. Ideally, a photo must be seen in the CMYK colour profile instead of the original RGB format, if your image editing software allows such on-the-fly simulations, to better gauge how suitable they are. Printing with similar means on smaller formats intermediate work is also very helpful. | |||
=== Video production === | === Video production === | ||