Tuesday, December 7, 2010

Digital Black and white photography art --profile and low-key images

· Digital Black and white photography art --profile and low-key image 2.9-profile/low profile try so many ways to control the contrast gradation, gradation control end to behave as a high or low profile images. I love the black and white images from its strong appeal, this is the color photography. Image split color, reflecting a refinement of the reality and abstract, it is black and white photography art · digital-imaging with a low-profile

2.9 high/low profile

Try so many ways to control the contrast gradation, gradation control end to behave as a high or low profile images.

I love the black and white images from its strong appeal, this is the color photography. Image split color, reflecting a refinement of the reality and abstract, which is black and white images of the works. And with this in mind, there's nothing I like better than a high or low profile images more.

2.9.1 handling high-profile image

High-profile image in color range mainly concentrated in a relatively bright gradation of the region, a whole screen tints of the tone or even white.

This expression of a positive, optimistic attitude to life, full of subtle changes of high-profile results are difficult to achieve. The following illustration shows, most of the painting renders as a light-coloured or white, but did admit that the "dead white." In this case, images are typically also requires very few little dark or black to balance the entire screen. The most typical example is the portrait of blond, blond model sitting in front of white background, the whole screen only model eyes showed a little dark.

Original image/this is a camera was metering information misleading typical examples.

Although lily is rendered as a high-profile, but the background is too deep. If you see the initial histogram, you will find the entire histogram peak appears in the midtones.

To obtain a high profile image, sometimes in the shot will encounter some difficulties.

In addition to requirements for uniform light distribution to ensure elimination of shadow, but also requires accurate exposure. Most of the light meter default is 18% grey, but this is still a high profile image is too dark. For example, the snow is an excellent high-profile images of the subject matter, but if you are a strong side light, or even worse, backlighting conditions, high-profile atmosphere disappears. In shooting be accurate exposure, it is very important, not too precise or not matter, in Photoshop can easily cover the back. · Digital Black and white photography art --profile and low-key images

Initial histogram/the histogram displays the gradation of peaks in the midtones.

Midtones slider/the midtone slider to the left, clearly mention bright background area.

Curve/slightly adjust the curve to mention bright on overall gradation.

· Digital Black and white photography art --profile and low-key images

Eventually the histogram/final histogram display screen the most highlights just located in the far right of the color gamut.

2.9.2 control the gradation of lilies

Accurately select and extract bright background area is improving the the best way of lily.

But the problem is that the screen has too many parts of the gradation is very close, it is difficult to be selected automatically. Using the "polygon Lasso" tool (feather value of 1 pixels), the selection is saved as a layer mask, you can use it multiple times to ensure that you can make the exact small adjustments. Use the "scale" tool is a good way to adjust the background and gradation of balance between Lily. The histogram shows that overall gradation of pan to highlight area.

Overall image also need to mention the bright point.

Produce a high-profile of an important principle is: as mentioned on most of the images, but must guarantee that no loss highlights some of the details. Use the "curves" tool can do that. First create a curves adjustment layer, in the curve of 1/4 to add a node, make sure that highlights some of the details will not be lost, and then put up in the following section. In order to ensure a smooth natural gradation changes, this process must be very careful.

The final image/adjust by prudent and careful, ultimately generating the gradation of bright, pleasant image, most of the details have been preserved.

· Digital Black and white photography art --profile and low-key images

2.9.3 low-key images

An image as a whole is very dark, only a very small amount of bright hue, is a low profile images.

It usually brings a completely different feel, a dignified feeling. Be careful not to keep a low profile and underexposed two conceptual confusion. In this figure, the image remains whole gradation, even in highlights if so if no, very subtle, but still exists.

And high-profile images, shoot low profile works also needs skills in order to obtain this free to have less resigned and the delicate balance between the hourly.

This is for many photographers. There is no doubt that the curve is the best way to adjust the gradation. Establish an adjustment layer, use the "info" Panel measurement K value. When image density of more than 94% of the time, most printers are not likely to reveal layers and details.

Scan Tulip/this is a flatbed scanner directly scanned images.

This is a way of getting the best small object image. Conventional camerasShadow, in this case, the lighting conditions are not regulated. Tulips are all lit up, but appeared to have no details on the background of black.

Low-key image histogram/this is a typical low profile image histogram, although the image of the most dark reached the black, but still retains the hierarchy.

No matter how little these details, but must guarantee the whole gradation of the screen. · Digital Black and white photography art --profile and low-key images

Use curve pressure dark/grey by pressing the dark part of gradation, Tulip prominence from the background, like a sculptural effect.

Control the entire screen of deep tone, to ordinary objects covered with a layer of mystery. The "curve" is the best tool adjustment.

· Digital Black and white photography art --profile and low-key images

Title of the book Digital Black and white photography art (colour printing)

ISBN ISBN 978-7-115-18084-1/TP author [United States] Tony Worobiec Ray Spence that the translator GE Pui-Joe Xiaobing release 1st Edition 1st initial time August 2008 pricing $ 58.00

Abstract black and white photography is the ability to exercise photography in the rapidly evolving digital age, it still is the embodiment of profound reflection and originality of the photographer of important ways.

Book authors through the interpretation of a large number of outstanding works, with its wealth of experience to clarify how digital technology for processing RAW formats, and other digital files or scanned film, photographs and images, and ultimately build a satisfactory gradation of beautiful black and white images. This book is suitable for keen to increase the number of black and white image creation technology, found more than ever creative black and white image authoring techniques of black and white image enthusiast, news documentary photographer, professional portrait photographers, fashion photographer, etc read reference.

Table of contents

Chapter 1 generates digital monochrome image scanning film 0 into black and white image 6 8-bit images with 16-bit image files using RAW 12 14

Chapter 2 contrast gradation control control 18 local gradation control: shelter and optical 24 use the constituency for local gradation of control copy and paste 26 28 30 gradient and quick mask using gray fill layer shielding and light 32 shadow/highlight command 34 use control using RAW file gradation control high/low profile 38 36

Chapter 3 on image further processing adjust perspective distortion 42 Blur Sharpen 48 44

Chapter 4 dark brown color and tone on tone 52 used hue/saturation adjustment blue and bronze 54 with Duotone color like selenium toning 58 56 composite to a black and white images paint 62

Chapter 5: synthesis and late effects simple image synthesis — swap day 68 complex image synthesis 72 with channel and masks make selection 74 effects: lightning 78 clouds increase shadow text 80 82

Chapter 6 digital darkroom Lith radiopaque 84 86 effect of negative sense light Emboss effects of infrared photography 99 90 soft light and texture effects 92 simulation process photosensitive materials: emulsion type 94 cyanide version photographic effect 96 dichromated gelatine photographic effect 98 Advanced photographic process 100 filter effects 102

Chapter 7, the extension of the boundaries of photography and borders builds a 108-110 of border baolilai with stereo scan flatbed scanner to produce digital negatives 112 118

Chapter 8 introduction to print and print sample making contact sheets 122 124 paper 126 ink collection and display of 128 130 132 personal publishing

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