Understand objective and subjective white balance

There is a significant difference between 'pleasing' and 'correct' color. Only in a relatively few photographic disciplines are you concerned about the correct color. This may be the case when photographing fabrics or, perhaps, catalog shots. Otherwise, usually aim for pleasing colors. The most heated discussions occur over what constitutes a good skin tone. Even here exist many cultural differences. Begin with a white balance you prefer, optimize the contrast and change colors selectively only...

Sharpness and Detail

It is hard to know how RS reaches its level of very natural sharpness. Both top-of-the-class debayering (demosaicing) and normal sharpening are involved. Figure5.50 Sharpness + Detail Sharpening slider normally left at 0. Zero does not mean that RS does not sharpen at all, but this level is considered to deliver a very natural sharpness with few sharpening artifacts. We set RS at level 0 and do necessary final minor sharpening in Photoshop using either USM (Unsharp masking) or EasyS. Detail...

Renaming

As described above, after copying files to a hard disk, files are renamed to ensure their names will be unique. A free PC utility called Rname-it is used (you can download it from our web site at 38 ). Several others programs are available, e.g. Renamer4Mac ( 39 ) for Mac OS X. The Photoshop CS File Browser and Capture One also allow renaming your files. We find Rname-it suitable for our use. A file name can contain a prefix describing the digital cameras used with, for instance, a name like...

Working in color and Black White

If you choose to work in B & W and color, use of Capture One allows you to have only one type of settings and previews in your cache. We installed Capture One a second time in a different folder to ensure that the cache is not shared (by default). You needn't go through a licensing hassle by copying the *.lic file from the old installation root to the new installation root. We want the B & W photo to not be overly contrasty in Capture One. Later we will open the file in Photoshop and...

Contents

1.1 Introduction to RAW files or digital negatives 1.2 How to use this book, how this book is organized What are the RAW file advantages Digital camera artefacts Color aliasing moir s 1-1 1-2 1-3 1-3 1-4 1-5 1-11 1-11 1-12 1-13 1-14 2.1 Understanding the different color modes 2-2 2.2 Understanding color management 2-6 Why you need to understand color management 2-6 What is a color management system 2-8 Visualization of color spaces 2-11 Calibration by eye Hardware based calibration Calibration...

Tone Curves

In addition, Capture One includes a variety of tone curves Figure 6-7 Capture One Exposure 1 Figure 6-8 Capture One offers some predefined tone curves For most situations, the standard tone curve Film Standard will do. When requiring greater shadow detail, try Film extra Shadow. The curve Linear Response is used mainly for profiling purposes. More and more often we find Curves in Capture One to be useful, especially in recovering some shadow detail. Otherwise we leave shadow recovery to...

White Balance WB

Two sliders control white balance in ACR Temperature and Tint. This is how Thomas Knoll (the original creator of Photoshop and also of Camera Raw) explains their function To get a color to appear white, you need to get three parameters correct. This is a basic feature of human vision, stemming from the three types of color sensors in the eye. There are several common ways of factoring these three parameters. Probably the most familiar is red-green-blue values, where white is when they are all...

Calibrating Adobe Camera

While Adobe Camera Raw does not support custom camera profiles, it does provide controls and settings for special color corrections. This allows you to basically build special profiles (at least something g resembling custom profiles) for your camera. If your camera tends to & over-saturate red or cyan, for example - more than other cameras of cD the same make and model - you might correct this in one image, then make it the default color setting for the camera. We recommend against using...

Exporting RAW files from a Smart Object

Because the Smart Object layer contains the full original RAW file, we can even take the original file back. Select the Smart Object layer that contains your RAW file and use Layer SmartObjects Export Contents gyer Select Filter View Window Meip gyer Select Filter View Window Meip ' 1 100 1 1 Flow 00 1 - Group into New Smart Object New Smart Object via Copy We think that Smart Objects allow a seamless integration of RAW files and the needed final tuning in Photoshop. Note Dr. Brown's Services...

RAW files embedded in Photoshop Smart Objects

One of the very powerful new features in Photoshop CS2 are the Smart Objects. We will not cover Smart Objects in detail other than what is needed for our example. Best you read Ben Willmore's book CS2 Up to Speed (see Ben's book 3 ). Overall, we find Smart Objects more helpful for Designers than photographers. But there is one feature that is very powerful for photographers, indeed. You can embed a RAW file into a Smart Object layer. The process is not complicated, but is not particularly...

Phase Ones Capture One DSLR Capture

Capture One Pro by Phase One ( 20 ) has been available for some time and has a generally good reputation. The company is well known for its P-series of digital camera backs for medium format cameras, such as the Mamiya RZo or Hasselblad 6 x 6. We use Capture One DSLR Pro when working with our Canon 1Ds, 10D and Nikon D1x, D100 and use Capture One Rebel with the Canon 300D. Capture One DSLR is available for Windows and Mac OS. There are two main features making Capture One a state-of-the-art RAW...

Browse and evaluate your RAW images with Bridge

Bridge is the new file browser by Adobe for the entire CS2 suite. With CS2, Bridge is no longer a module of Photoshop, but is a stand-alone application. In the context of Bridge, ACR plays a special role ACR can be hosted by either Bridge or by Photoshop. Figure 4-21 Bridge File Browser using Camera Raw Figure 4-21 Bridge File Browser using Camera Raw Bridge uses Adobe Camera Raw to create thumbnails and preview images for all supported RAW file formats. Preview images are of high quality and...

Photoshop CS Lens Correction

Figure 7-23 Corrected image using the Photoshop CS2 Lens Correction filter Figure 7-23 Corrected image using the Photoshop CS2 Lens Correction filter The correction in the Photoshop CS2 Lens Correction filter may be not as perfect as in PTLens but in most cases it will perfectly do the job. Remember, in the old days you did not do any correction at all.

Recording Adobe Camera Raw settings

Looking at a converted image, you may wonder which settings were used for the RAW conversion. By using ACR for the conversion, this is no problem ACR records all settings used in the meta information of the created file. You may recall (view) it in Photoshop by using Photoshop's File Information function (File rFile Info or via Q+ +K+flp- Description Camera Data 1 Camera Data 2 Camera Data 3 Categories History IPTC Contact IPTC Content IPTC Image IPTC Status Adobe Stock Photos Origin http ns....

Sample

Figure 4-4 White balance set to Off Figure 4-4 White balance set to Off When we view the crab photo we see that all images are off in white balance. This was expected as the photo was taken in the shade, and few cameras with automatic camera-white-balance will correct this properly. ACR shows the As Shot WB settings. 1 Figure 4-5 As Shot white balance settings in ACR Whenever possible, in such situations, we photograph a Mini-ColorChecker to be used as a color reference for the white balance....

Photoshop color and monitor profile settings

Before beginning to work with Photoshop, set up the program up with your personal color management preferences. The way color settings are made is similar with all Adobe applications since Adobe Creative Suite 1 CSi . When using CS2, you may use centralized color settings. These settings will be used by default by all other CS2 applications, as well. With CS2, the settings may be done in Bridge. Photoshop probably offers the most advanced color management support in any application. For that...

What are the RAW file advantages

To better understand what these magic RAW file formats are, you must understand how the majority of today's digital cameras work. All new digital cameras capture color photos, right Well, you ultimately get color prints, yet most modern digital cameras use sensors that only record grayscale values the Foveon X3 sensor, digital scanning backs and multi-shot digital backs are exceptions . Assume you want to photograph a box of Crayola crayons 1 Figure 1.1 Full colored sample target A gray scale...

B W with Capture One DSLR

We recall that Capture One DSLR Capture One allows displaying images in grayscale, by activating the U button top right .This is acceptable, but not real exciting. Figure 12-7 Capture One in grayscale display mode click for this Capture One can also convert to grayscale on output. Figure 12-7 Capture One in grayscale display mode click for this Capture One can also convert to grayscale on output. Capture One provides a generic grayscale profile. Capture One provides a generic grayscale profile....

Visualization of color spaces

Find Image With Srgb Color Profile

Color spaces are actually three-dimensional L-, A-, B-axis . The profile shown in Figure 2-5 is that of sRGB, using the ColorSync utility of Mac OS X. The gray outer space shows the gamut of Adobe RGB 1998 and allows comparing these two color spaces. As can be seen, Adobe RGB is a superset of sRGB. Figure 2-5 3D diagram of sRGB color and Adobe RGB 1998 gray shape Figure 2-5 3D diagram of sRGB color and Adobe RGB 1998 gray shape The industry also uses some form of 2D charts to display color...

Heal purple fringing

Here is a real example we got from a Sony F828. We show how to make useful images from such files. First get a free version of Panorama-Tools. You have to search the web where to find it, as we have no right to distribute this free software. A good start will be 40 . There you find a user friendly front end to Panorama-Tools as well. The following is working on the original file that was not sharpened 1 Fig. 7-12 Original with strong CA 1 Because we are using layers we create a new layer with...

Camera profiling using InCamera

InCamera is a Photoshop plugin allowing users to create camera profiles. We recommend InCamera mainly for studio profiles in which you control the light consistently. 1. Convert your RAW file with a RAW converter e. g. RSE in the mode required for creation of camera profiles see the documentation 2. Open the converted file into Photoshop do not color manage . 1 Figure 11-7 Ignore Color Management for this image at the time beeing . 1 Figure 11-7 Ignore Color Management for this image at the...

Shooting for a neutral gray

When shooting in abnormal lighting conditions, often the case when shooting outdoors or outside a controlled studio with well controlled lights, an ICC camera profile is of little use. However, there are some ways to work around this problem. One reason for profiling is to achieve a correct white balance not always what you want, e.g. when setting up soft or colored lights within a studio to achieve an intentional special mood . In this situation, there is an easy and universal solution, though...

Batch Processing with Adobe Camera

To convert a number of RAW files efficiently with Photoshop CSi you must create your own Photoshop action. This action should open a file in ACR, apply all settings for the ACR workflow selecting output Resolution, Depth, color Space, Size, start the conversion, make the setting for the target format, and finally save the file using the appropriate preferred image mode. Important in file saving is selecting an output file format and various settings for that specific file format. The following...

Batch Processing with Raw Shooter

Batch processing setup in RawShooter remains relatively simple. We prefer RawShooter in its film-strip-mode. The settings for processing are grouped under the Batch convert tab. After applying the proper conversion settings Correct tab , select the file or files you want to process, check your workflow parameter using the tab Batch convert and click Add. This create job tickets for the batch conversion and adds them to the batch queue. The processing will only start when you click Go . Once you...

Metadata for Photographs

Metadata provides descriptions with data. Using digital photography, metadata describes an actual photo taken. Metadata may be embedded in the actual data file or may be stored separately -either in a discreet file or in a database. With RAW files, TIFFs and JPEGs, we actually find several types of metadata - RAW conversion settings e.g. embedded in XMP , - Preview icons and preview images, - Classification data etc. partly stored in an image database . File attributes The file system stores...

Advantages and disadvantages of converting to DNG

Adobe's DNG converter runs smoothly and fast. However if you already have dng files in your source folder, DNGC converts them as well, which usually makes little sense. When we tested the converter, dng files could be opened by Photoshop CSi aka PS 8 and Photoshop CS2 aka PS9 . As of this writing, Ci and Raw Shooter, Nikon Capture 4.1, Canon Digital Photo Professional and Bibble did not support DNG. Many Viewers and DAMS Digital Asset Management Systems supporting RAW files did support DNG e.g....

Batch Processing with Capture One

Capture One Pro was one of the first RAW converters providing advanced batch processing, thus improving workflow with RAW files. We prefer to use Capture One in film-strip-mode while batch processing. Principal settings for batch processing with Capture One are made in File rPreferences rProcess Settings see figure 8-8 at page 8-14 . It allows including a copyright note into the output files without calling up of the ITPC metadata dialog. The main section for actual processing are found under...

Camera profiling using Eye One Photo and Profile Maker

Gretag Macbeth

Figur 11-1 GretagMacBeth MiniColorChecker GretagMacbeth 15 offers Camera, a package consisting of a camera target and a software module called ProfileMaker 5. Camera is sold as a standalone package or as part of different Eye-One packages - e.g. Eye-One Photo. Gretag's Camera - supporting Windows as well as Mac OS - including a small 4 x 5 Inch camera target MiniColor-Checker. For serious camera profiling, however, you should consider ColorChecker SG, which may be ordered separately. It is...

Metadata usage in Adobe Camera Raw and Bridge

Adobe applications are making increasing use of metadata. Both Photoshop file browser or Bridge display some metadata as part of the image icon list and even more as part of the metadata preview window. The almost complete range of metadata is displayed, when you call up the File Info window. Using Bridge or the file browser of Photoshop CSi, you may customize which metadata is displayed with the preview icons of the browser and what kind of metadata is visible at the metadata panel of the...

Amr Raw Data Sample

Figure 4-16 Default tonality settings Figure 4-16 Default tonality settings This image requires further minor tweaks Avoid small aggressive highlights Figure 4-17 Tweaked tonality settings Figure 4-17 Tweaked tonality settings In addition to these changed parameters, the Tone Curve was set to linear

Color working spaces

It is a bit tedious to work with a large number of different device dependent color spaces. This is why virtual, standardized color spaces were defined. These do not describe a gamut of a real device but for an abstract virtual device. There are several different such spaces for each of the color models RGB, Lab, CMYK . They range from narrow to broad gamut. For example, for the RGB color model, there is from narrow to wide sRGB, Apple RGB, Adobe RGB 1998 , ECI-RGB and Pro Photo RGB and several...

Usage of the Adobe DNG Converter

The Adobe DNG converter DNGC for short may be downloaded free of charge from Adobe's Internet Home Page 45 . It has multiple functions, outlined above. ijj Adobe Digital Negative Converter f Select Folder DA_tmp multiple_raw I Include images contained within subfolders Select location to save converted images Select Folder DA_tmp multiple_raw_dng N ame example MyD ocument. dng J Document Name N ame example MyD ocument. dng J Document Name Compressed lossless Preserve Raw Image Don't embed...

LAB color model

The CIE-LAB color model often spelled Lab, LAB or L a b separates colors chroma, A B from the detail and brightness luminance, L in images. As in RGB, Lab uses three basic components to build or describe a color L for Luminance , ranging from Black 0 no light to white 100 , and two color axes a and b. The a-axis is a Green to Red and the b-axis, Blue to Yellow.