2012年10月26日星期五

IMPORT PHOTOSHOP FILE INTO ILLUSTRATOR WITHOUT QUALITY LOSS

IMPORT PHOTOSHOP FILE INTO ILLUSTRATOR WITHOUT QUALITY LOSS

import photoshop file into illustrator without quality loss
Adobe Photoshop is one of the world's best known software applications and widely used in professional graphics, both in print and for web work. While there are some great open source graphics applications like GIMP or Krita, sometimes Photoshop is still the only application which can be used in certain cases - especially in the pre-press world.
One of the sources of its power is the native PSD file format. A PSD file can not only hold image data, but is more of a large container which can include metadata, camera info, text, vector artwork and more. Most other programs only handle a small subset of its capabilities.
PSD Import
Scribus does have its own native capabilities to import PSD files from version 6 and earlier - the latest version of the PSD format which is publicly documented. The Scribus Team has also been able to worm some features out of files created with later PS versions, so most PSD files can at least be loaded into Scribus, but they may have file format features which are not supported.
In general, PSD support is quite extensive, including:
The ability to manipulate and adjust layer settings.
The option to enable and use masking along with the paths embedded in the file.
In almost all cases, provided they are not defective, ICC color profiles which are embedded into a PSD are detected and used when color management is enabled.
Scribus generally will import 8-bit Greyscale, RGB and CMYK PSD files without issue.
Alpha transparency is supported.
Scribus will import PSD files with normal layers and will display the individual layers in the Extended Image Properties dialog, which is avialable from the Context Menu.
Clipping paths in PSD files will be recognized and can be used for text flow.
Blending modes which are in the image file can be used to affect the way the image displays and prints. It's also possible to modify blending or to apply other modes between PSD layers. This won't affect the original file.
In almost all cases Scribus will automatically detect the file encoding, whether it is ASCII, Binary or Binary with JPEG.
Potential Issues
Adjustment layers and effect layers are not yet supported. In such a case, Scribus will fall back to using a "flattened" version of the file.
Layered TIFFs saved from Photoshop are often not handled well by other TIFF readers and importing applications. This is because Photoshop actually embeds PSD type layers in a private tag. Scribus will attempt to read the PSD layers info and, if successful, make it accessible to the Extended Image Properties dialog. Text and vector layers within this private tag are not yet supported.
Specialties
DCS (Desktop Color Separations) 1.x/2.0 files are a special flavor of EPS saved in Photoshop and are imported natively - much like a PSD file - and complete with ICC profile support. Image quality should be close to or equivalent to the native PSD file. Vector masks are also detected and can be used to control the display within Extended Image Properties. DCS files can also be saved from Quark XPress®, but this flavor will be imported using Ghostscript as a filter for the time being. This is partly because the way Quark X-Press® exports them does not conform to the DCS specifications properly.
Scribus can detect Duotones, Tritones and Quadtones in PSD and Photoshop EPS files and import them. The difference between both formats is that you need to import the spot colors from the EPS separately via Edit > Colors > Import. If you import a PSD file, you can directly manipulate each of the spot colors within it via the Image Effects dialog, which is available from the Context Menu. In most cases, Scribus will detect the image as Duo, Tri or Quadtone and automatically import the colors from the PSD file.
Microsoft Expression Web enables you to generate a .png (PNG-24), .gif, or .jpg file from an Adobe Photoshop .psd file and select the Photoshop layers you want to include or exclude from the image. If you want to make changes to the original .psd file, in Expression Web, you can select the web-optimized image that Expression Web generated for you and conveniently open the original .psd file in your default .psd file editor, such as Adobe Photoshop.
Expression Web can import Photoshop .psd files that have all the following properties:
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2012年10月24日星期三

IMPORT PHOTOSHOP FILE INTO ILLUSTRATOR WITHOUT QUALITY LOSS

IMPORT PHOTOSHOP FILE INTO ILLUSTRATOR WITHOUT QUALITY LOSS

import photoshop file into illustrator without quality loss
Adobe Photoshop is one of the world's best known software applications and widely used in professional graphics, both in print and for web work. While there are some great open source graphics applications like GIMP or Krita, sometimes Photoshop is still the only application which can be used in certain cases - especially in the pre-press world.
One of the sources of its power is the native PSD file format. A PSD file can not only hold image data, but is more of a large container which can include metadata, camera info, text, vector artwork and more. Most other programs only handle a small subset of its capabilities.
PSD Import
Scribus does have its own native capabilities to import PSD files from version 6 and earlier - the latest version of the PSD format which is publicly documented. The Scribus Team has also been able to worm some features out of files created with later PS versions, so most PSD files can at least be loaded into Scribus, but they may have file format features which are not supported.
In general, PSD support is quite extensive, including:
The ability to manipulate and adjust layer settings.
The option to enable and use masking along with the paths embedded in the file.
In almost all cases, provided they are not defective, ICC color profiles which are embedded into a PSD are detected and used when color management is enabled.
Scribus generally will import 8-bit Greyscale, RGB and CMYK PSD files without issue.
Alpha transparency is supported.
Scribus will import PSD files with normal layers and will display the individual layers in the Extended Image Properties dialog, which is avialable from the Context Menu.
Clipping paths in PSD files will be recognized and can be used for text flow.
Blending modes which are in the image file can be used to affect the way the image displays and prints. It's also possible to modify blending or to apply other modes between PSD layers. This won't affect the original file.
In almost all cases Scribus will automatically detect the file encoding, whether it is ASCII, Binary or Binary with JPEG.
Potential Issues
Adjustment layers and effect layers are not yet supported. In such a case, Scribus will fall back to using a "flattened" version of the file.
Layered TIFFs saved from Photoshop are often not handled well by other TIFF readers and importing applications. This is because Photoshop actually embeds PSD type layers in a private tag. Scribus will attempt to read the PSD layers info and, if successful, make it accessible to the Extended Image Properties dialog. Text and vector layers within this private tag are not yet supported.
Specialties
DCS (Desktop Color Separations) 1.x/2.0 files are a special flavor of EPS saved in Photoshop and are imported natively - much like a PSD file - and complete with ICC profile support. Image quality should be close to or equivalent to the native PSD file. Vector masks are also detected and can be used to control the display within Extended Image Properties. DCS files can also be saved from Quark XPress®, but this flavor will be imported using Ghostscript as a filter for the time being. This is partly because the way Quark X-Press® exports them does not conform to the DCS specifications properly.
Scribus can detect Duotones, Tritones and Quadtones in PSD and Photoshop EPS files and import them. The difference between both formats is that you need to import the spot colors from the EPS separately via Edit > Colors > Import. If you import a PSD file, you can directly manipulate each of the spot colors within it via the Image Effects dialog, which is available from the Context Menu. In most cases, Scribus will detect the image as Duo, Tri or Quadtone and automatically import the colors from the PSD file.
Microsoft Expression Web enables you to generate a .png (PNG-24), .gif, or .jpg file from an Adobe Photoshop .psd file and select the Photoshop layers you want to include or exclude from the image. If you want to make changes to the original .psd file, in Expression Web, you can select the web-optimized image that Expression Web generated for you and conveniently open the original .psd file in your default .psd file editor, such as Adobe Photoshop.
Expression Web can import Photoshop .psd files that have all the following properties:
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2012年10月22日星期一

PHOTOSHOP COLOR CORRECTION TECHNIQUES AND TUTORIALS

PHOTOSHOP COLOR CORRECTION TECHNIQUES AND TUTORIALS

One of my favorite tools that I use on regular basis is the Curves Adjustment tool, which not only helps me in creating desired contrast, but at the same time it allows me to color correct my images. I use this tool instead of widely used Color Balance Adjustment tool. This tutorial will teach you how to use this tool to color correct photos efficiently.
Introduction
As time goes by Photoshop developers add the newest, baddest, tricked out functions to the Worlds coolest software for digital imaging. Each new edition comes with newer tools, more presets and better interfaces which allow beginning users to learn Photoshop quickly and efficiently. With these new tools many users forget about the ever-present tools that are still a standard in the professional field.
The Color Balance Adjustment tool gives me limited options when it comes to correcting my images, whereas the Curves Adjustment tool allows me to color correct specific areas of the image without affecting the rest of the image (ex. I want to color correct my shadows, but I want to leave my midtones unaffected). Lets get to work then!
This technique is a contrast/tone and color correction technique all in one. Once you run through this, you will see how just about any image can be improved and you will use this technique many times over. For a number of years, this was just about the only correction technique that I used.
The first illustration is an image that I snapped during a trip to the amazing city of Hong Kong. As you can see, the image is lacking a bit of contrast and also has a slight color cast to it. It's really not that bad (or is it?), but just looks somewhat dirty. You will soon see a huge difference in image quality. You can download this image to work with during the tutorial, or pick an image of your own.
Setting the black point. Choose a Levels adjustment layer from the layers palette. We are now going to set the black and white points in the levels settings. In the Levels dialog box double click the Set Black Point tool as shown at left.
Black point settings. You will see a color picker. Set everything to solid black and then change the setting under "B" to 5, as shown at left (this sets the black point to 95% black). Click OK. 
Setting the white point. Double click the Set White Point tool, which is the white eyedropper. In the color picker, set for pure white and then enter 95 into the "B" setting as shown. The white point is now set to 95% white. 
5
Finding shadows. We are now ready to perform the image correction. What we are going to do is click the Set Black Point tool in the darkest part of the image and the Set White Point tool in the lightest part. Locate the darkest part of the image. Hold down the Alt (Option on Mac) key and as you move the shadow slider to the right, the image should turn white. As you move the slider you will see some areas start to show through. This is the Black Point threshold, as shown at left. The areas that start to show are the darkest areas of the image.
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