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The Photoshop Blog offers the latest Photoshop news and software updates, Photoshop tips and tutorials, and random thoughts from graphic artist and Photoshop expert Jennifer Apple.
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Photoshop CS3 Tutorials By Jim Hoerricks - LAPD Forensic Expert
February 19 2008
Jim Hoerricks is the Senior Forensic Video Analyst for the Los Angeles Police Department's Scientific Investigation Division, a Photoshop instructor, an author, and a court qualified expert witness in Forensic Video Analysis. His site, Forensic Photoshop, contains lots of interesting posts and tutorials that deal with using Photoshop for forensic work. Jim established the LAPD's Forensic Video Lab in 2001, has been the lead analyst on many of the LAPD's high-profile cases, and helped set the standard by which video evidence is handled by the department. Jim has also written a book, Forensic Photoshop. We are pleased to offer some of his Photoshop CS3 tutorials and articles.
Forensic Photoshop Tutorial - Sharpening in LAB mode
I've received a few e-mails from folks asking for a demonstration on sharpening in LAB mode. With this technique, we are going to be targeting just the Lightness Channel - affecting only the lightness values in the image.
In today's image, detail is important. In a structural failure such as this, I want to highlight the sources of that failure. In this case, the bridge's details, the torn and twisted metal, the bent rebar, and the broken concrete all have a part to play in the telling of this story. I also want to make sure that the items in the water receive attention.
Forensic Photoshop Tutorial - Custom Filters Explained
If you are a fan of High Pass sharpening like me, you've probably passed the Custom filter on a daily basis. You may have even opened it up to see what it does. Then, after seeing this spreadsheet looking thing, clicked cancel and haven't given it a thought since. Let's take a look at a couple of effects that can be produced using custom filters.
Forensic Photoshop Tutorial - Info Palette - An Analyst's Best Friend
There are times, as an artist or photographer, that I want to create a certain look and feel with an image - warm, hot, cool, cold, and etc. These types of temperature issues can help set the mood and convey a certain message. Look at the images used in advertising and you'll see what I mean. Johnny Walker's Blue Label is a different blue than LA Dodger Blue. The difference is in the brightness value (HSB). Dial down the brightness of any colour to cool it off.
In Forensic science, numbers are king. Regardless of my monitor's state of repair, or my calibration method, if I sample an image I will be able to determine the RGB values for a particular pixel within Photoshop.
Forensic Photoshop Tutorial - Local Contrast Control with the Sponge Tool
This tip is a fun one: using the Sponge Tool to control local contrast. To bring out the details in an image, I can use an curves/levels adjustment layer. I can further refine that adjustment with masks. With the Sponge Tool, I can target specific areas of the image quickly. Working on a separate layer, I can apply these edits non-destructively.
Forensic Photoshop Tutorial - Using Calculations For Black & White Conversion
Sometimes we find it necessary to convert our images to grayscale. There are a few different methods available to us that yield different results. You've probably heard that simply choosing Grayscale from the Image menu is not the best way to go about it. This produces similar results as converting the image to LAB mode then selecting only the Lightness channel. You may have also worked with the Channel Mixer or CS3's new Black and White adjustment layer tools.
I like Calculations for several reasons. I can use it for masking and I can use it for black and white conversions. By using it for black and white conversions, I have an incredible amount of control over the final look of the image. I also have the ability to create a new document from the results, thus preserving my original. Let's take a look.
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Photoshop CS4 and Photoshop CS4 Extended feature a newly refined, tab-based interface in a single, integrated window, with self-adjusting panels arranged in docked groups. Automatically keeping tools well organized and away from your work area means you get greater efficiency, less clutter, and better results, faster than before.
Delivering all the features of Adobe Photoshop CS4 software, including the new Adjustments and Masks panels, Adobe Photoshop CS4 Extended also provides breakthrough 3D editing and compositing power to paint directly on 3D models, create 3D animations, convert 2D images to 3D objects, and more; richer motion graphics editing; and more powerful and flexible image analysis and tracking. Learn more on our Photoshop CS4 Tutorials Page. To download the free trial, see details on our Photoshop CS4 Free Trial Download Page.
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Did You Know You Could Create An Entire Website In Photoshop?
SiteGrinder Photoshop Plugin - Create Websites Instantly
There often seems to be a strict division of labor within the world of web design and development. Creative professionals tend to stick to the Photoshop domain, while those well-versed in scripting are left to the task of implementing their work. Indeed, the two realms are quite different from each other, to which any of us even vaguely familiar with either can easily attest.
Essentially, Photoshop is a no-holds-barred design studio, offering the artist a seemingly endless array of creative options. On the other hand, HTML, CSS, Java and the like follow strict rules of engagement, requiring the developer to take any number of esoteric concerns into consideration in order to ensure that designs are properly displayed on the web.
Turn Photoshop Into A Complete Web Design Tool
SiteGrinder seeks to bridge this gap between design and development. Basically, this program turns Photoshop into an easy-to-use and fully functional web design tool. With SiteGrinder, designers will now have the freedom to totally let their creativity loose and then, without skipping a beat, transfer their designs to the web. Bringing esthetic concerns together with more practical considerations, this program is an amazingly powerful tool that would make a fantastic addition to any web designer's bag of tricks.
Generate Your Web Pages Directly From Photoshop
By generating web pages directly from Photoshop, you'll be able to spend much more time on the creative end of the spectrum, since you'll know right off the bat how well particular designs will translate to the web. No more going back to the Photoshop drawing board after getting a phone call from your development team, telling you that what you had envisioned doesn't have a chance of being displayed on the web. You can immediately visually and interactively test your designs, which permits you to then make changes to either esthetics or functions while it's still relatively early on in the design process.
Pricing and Availability
Mac OS X and Windows versions of the SiteGrinder unlockable demo are available now via download. SiteGrinder can be ordered from Media Lab's online store.
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Adobe Photoshop Lightroom Available At The Adobe Store
Adobe has announced the immediate availability of Adobe Photoshop Lightroom 2 software, the photographer's essential toolbox for managing, adjusting and presenting large volumes of digital photographs. With new enhancements such as dual-monitor support, radical advances in non-destructive localized image correction, and streamlined search capabilities, Photoshop Lightroom 2 is a compelling upgrade that simplifies photography from shoot to finish. Visit the Adobe site to download a free 30 day Photoshop Lightroom trial free download.
As Adobe’s first application to support 64-bit for Mac OS X 10.5 Macintosh computers with Intel processors and Microsoft Windows Vista 64-bit operating systems, Lightroom 2 also provides improved memory performance for dealing with large scale images. Find the latest Lightroom 2 tutorials on our Photoshop Lightroom 2 Tutorials page.
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Find more Photoshop CS4 tutorials on our Photoshop CS4 Tutorials Page.
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Photoshop CS3 Book - CS3 Essential Skills - By Mark Galer And Philip Andrews
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Photoshop CS3 Tutorial High Dynamic Range
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