| SILKYPIX® | SOFTWARE MANUAL |
| 10. Chapter Summaries | ||||||||
10.1 The color temperature and the color deflection
- The color temperature is used expressing the color of the light source.
If the object is heated, light is generated. Continuous heating increases the temperature of the object. At first the light generated from the object is red. The color is changed to orange, yellow and blue at last by increasing temperature. It this means the temperature of the object determines the color of the light. Then we call the color with the temperature of the object. This is called the "Color temperature".
For example, it is called 1500K, which the color from the object that temperature is 1500K. K(Kelvin) is a unit of temperature.
0K = -273.15C = -459.67F, K = C + 273.15 = (F + 459.67) / 1.8
These objects are called Black body radiator or Planckian radiator.
The temperature of the surface of the sun is about 6000K. This means the sunlight is 6000K as color temperature. But the color temperature of the sunlight that we can observe on the earth is about 5000-5500K because the blue ray is reduced during the air.
For another example, the light from the tungsten is about 2000-3000K.
However, the fluorescent light and mercury light are different type of light sources, which have different luminescence principle. For these light source, we also use the color temperature of the nearest black body radiator. Then there is a deflection from the real color of the black body radiator. This deflection is called "Color deflection" in this software.
A Black body radiation curve is only a curve in the color space. We need two dimensions to plot the point in the color space. One dimension is the "Color temperature" and another is the "Color deflection".
- EXIF (Exchangeable image file format for Digital Still Camera) is a Digital Still Camera Image File Format Standard, which is issued by JEIDA in 1996 as version 1.0.
EXIF contains the information of the camera, setting for taking pictures, property of the image.
We can record some information, for example, shutter speed, F value, date and time, thumbnail image, colorspace and etc. to the output image file with the EXIF information.
SILKYPIX® Developer Studio is conformed to EXIF version 2.21.
- 10.3.1 Development parameter file and incidental information file
- SILKYPIX® Developer Studio creates some files in the same folder as the RAW data file. These files are in conformity to the DCF standard that has the same basename as the RAW data file and the file-extension is different.
One is the "Development parameter file" that the file-extension is a "spd". This file includes the development parameters, marks, rotation and etc. The others are called "Incidental files" in this software, which include marks, rotation and etc. for the JPEG/TIFF images. These file-extensions are "spj" or "spt".
These above files are created automatically and they are used to resume previous environment for the each scenes.
You can disable to create them by using the "Function setting" dialog. Refer to "9.3.5 Enable to save the development parameter and rotation information".
When the auto saving function is disabled, your modification is not saved automatically. In another word, your modification for each scene is kept until closing them by opening a new file or folder, "Close" command or exiting this software.
- The thumbnail file (spi) is also created automatically for the purpose to display the image promptly.
When you disable it to save the incidental file, the thumbnail files cannot be made too.
- SILKYPIX® Developer Studio creates the virtual storage files on the temporary folder. Their filenames are "DefaultTCCBSectionXXXX.lck" and "DefaultTCCBSectionXXXX.vm0". (XXXX: 0000-9999)
They are created automatically at the beginning of this software and deleted at the end of this software.
You can specify the folder to create these temporary files by using the "Function setting" dialog.
- SILKYPIX® Developer Studio creates the user configuration file for each user. The filename is "SPDUserX.ini" (X: numeric) and it is created in the user folder that is prepared by your OS.
For example, the following folder is used; (XXXX: your user ID)
Windows 2000/XP: "Documents and Settings/XXXX/Local Settings/Application Data/ISL/SILKYPIX Developer Studio 2.0"
Mac OS X: "/Users/XXXX/Library/Preferences/SILKYPIX"
When you have some trouble on your system, our customer service may request you to operate some troubleshooting action.
Do not use the menu command [Help (H)] - [Trouble shooting] without our guidance, or unexpected action may happen.
- 10.4.1 Initialize thumbnail files
- You can delete the thumbnail files of all the scenes that are displayed in the thumbnail mode by this command.
As a default setting, SILKYPIX® Developer Studio creates the thumbnail files on the same folder as the image files.
DO NOT USE THIS COMMAND WITHOUT OUR GUIDANCE.
- You can initialize your configuration by this command, which includes the setting, access history, window position and etc.
When you execute the command, this software will exit.
DO NOT USE THIS COMMAND WITHOUT OUR GUIDANCE.
- SILKYPIX® Developer Studio corresponds to the DNG (Digital Negative) issued by Adobe Systems Incorporated, which is one RAW data standard.
You can convert the RAW data to a DNG data by using the tool provided by Adobe Systems Incorporated. Refer to the home page of Adobe Systems Incorporated for the more details.
10.5.1 Outline of DNG
- The DNG (Digital Negative) consists of the RAW data itself, some parameters of the property, color information, taking information, thumbnail and etc. Instead of the RAW data, it may include the Linear RAW image data that usually has RGB three color-elements per pixel. One is a "RAW" type and the other is a "Linear RAW" type. You can select one of these two types when you convert from the original RAW data.
The "RAW" type includes the RAW data itself that is recorded on the image sensor. And SILKYPIX® Developer Studio provides full performance for it.
"Linear RAW" type includes the partially developed image data that is already processed de-mosaic process. SILKYPIX® Developer Studio provides limited performance for it but can develop the image data that is not supported as original RAW data.
- DNG can include the RAW data recoded by various types of image sensors. Therefore there are some limitations for developing the DNG.
If you cannot develop the DNG, please retry with the "Linear RAW" type DNG.
(1) Any type of DNG from correspondence camera of SILKYPIX®
- SILKYPIX® Developer Studio can develop them. You can select one of two color reproduction methods, our original method or the ones specified in the DNG. In another word, you can select additional "Color mode" that are "DNG Standard color", "DNG memory color 1" and "DNG portrait color 1".
For "Linear RAW" type DNG, you cannot use some parameters for de-mosaic process, for example, NR, Development precision.
- SILKYPIX® Developer Studio can develop only the DNG that is recorded with the image sensor that has three color-elements and each element located as a matrix. In other word, the image sensor that is a honeycomb type or has four color elements are not supported.
In this case, use the color reproduction method specified in the DNG.
- SILKYPIX® Developer Studio can develop only the DNG that is recorded with the image sensor that has three color-elements. In other word, the image sensor that has four color-elements may not be supported.
In this case, you cannot use some parameters for de-mosaic process, for example, NR, Development precision, and it is used that color reproduce method specified in DNG.
- SILKYPIX® Developer Studio can treat both Compressed type and Non-compressed type DNG's.