 | | Understanding Resolution in Adobe Photoshop CS4or designers working ingraphic design companies using Adobe Photoshop CS4, it is important to understand the various resolution-attributes like dimensions, bit depths, and color models. These are discussed below:
The dimension of an image should be set with a proper pixel value. Although, Photoshop has a maximum pixel limit of 300000 X 300000, graphics designers usually prefer to keep the dimension to a lower resolution (for example, 400X400 pixels). Similarly, one can work with bit depths up to 32 floating-point bits per channel in HDR (High Dynamic Range) mode in graphic web design ; although, most image editing is done at 8 bits per channel (24-bit RGB and 32-bit CMYK).
The different resolution types are:
Sampling Resolution - For scanned images, sampling resolution gives a measurement of precision of the scanning process which is measured in sample per inch (spi).
Document Resolution - The resolution value saved in the file when an image is imported from any software, is known as document resolution. The image quality changes only when the image is resampled.
Effective resolution - The effective resolution is the resolution of the image after it is scaled (by compressing or stretching the pixels) to its final print size.
Device resolution - It is the resolution of the output device. In graphic and web design, where the output device is not specific, it is essential to keep the resolution to a common and acceptable figure.
To give details of the resolution of an image, following parameters are important:- Pixel Dimensions
- Physical Dimensions and Resolution
- File Size
- Megapixels
- Single-Side Dimension.
- 'Res' or the number of pixels per millimeter
A bigger resolution does not necessarily mean a better resolution. A higher means that it would take longer to get saved, printed or opened. At the same time, a lower resolution may result in a pixelated image with a degraded quality. So, it is essential for a web graphic designer to keep the right resolution balance depending on the purpose of the final image. |
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| HDR Photography Photo Workshop (Wiley's Photo Workshop Series)
by Pete Carr and Robert Correll |  | BOOK OUTLINE:
- Chapter 1 Dynamic Range and Digital Photography
- Chapter 2 Gearing Up
- Chapter 3 The Art of HDR
- Chapter 4 Landscapes
- Chapter 5 Architecture and Cityscapes
- Chapter 6 Interiors
- Chapter 7 Black and White
- Chapter 8 People and HDR
- Chapter 9 Street Photography
- Chapter 10 More Creative Possibilities
Wiley; First edition (June 9, 2009)
Product Dimensions: 9.1 x 7.3 x 0.9 inches
Paperback: 304 pages | Product Description:
Expand your artistic vision with HDR photography
By artfully blending multiple exposures, you can create images with incredible detail, photos that mimic fine paintings, surrealistic imagery - once you understand the process, your options are virtually endless. This book explains the tools you need to get started and how to create high dynamic range (HDR) images. You learn to evaluate a scene, photograph different subjects for the best HDR results, gain skill with software, and begin a lifetime of exploration.- See how HDR compensates for the camera's limited ability to record the visible range of light
- Examine the necessary camera features and accessories
- Learn to process HDR images using Photomatix and Photoshop Elements
- Learn to create HDR photos from single exposures
- Experiment with landscapes, cityscapes, interior shots, black-and-white, nighttime photos, and more
Save 15% on Photomatix software when you buy this book! Details inside!
A gorgeous full-color guide to high dynamic range (HDR) photography
With HDR, people can boost detail in the light and shadow areas of a photograph, enhancing crispness and clarity to an astonishing degree-and heightening expressiveness and dramatic impact. This beautiful book reveals the secrets of spectacular HDR images, covering everything from camera set-up and basic Photomix or Photoshop manipulation to toning, reducing noise, creating panoramas, layering images, and adding vignettes and other finishing touches. Hundreds of striking full-color images taken around the world illustrate techniques and showcase the creative power of this increasingly popular technique. | About the Authors:
Pete Carr became fascinated with photography at age 10. He became a software engineer, but soon returned to his first love. He authors an award-winning photoblog, Vanilla Days. Pete Carr (Liverpool, UK) is one of the leading specialists in HDR photography. His work has been featured by Professional Photographer, JPG Magazine, DSLR User, the BBC, and various galleries around the UK.
Robert Correll is an author, artist, music producer, audio engineer, and musician as well as a photographer. He's an expert in image-editing software. Robert Correll (Fort Wayne, IN) is a digital photo expert who writes monthly photo retouching articles and tutorials for the Paint Shop Pro Photo magazine and has his own professional photo retouching and restoring business. |
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