Articles & Reviews
upload trouble 2
Converting to B/W...
There are a lot of different ways to convert color to b/w. One way which produces a different tonal feel than the more common RGB->Grayscale conversion is to use Lab color Mode. Lab color mode converts the image to a Lightness, a, and b, channels. The lightness channel is the value component of the image, a is the red-green component, b is the blue-yellow component. What we do is keep the lightness channel and delete both color channels. Here's how:
Open image. Click on Image-->Mode-->Lab Color to convert from RGB to Lab color.
Click on Windows -->Channels to open the channels palette. You should see a palette with 4 channels Lab, Lightness, a, and b. Drag the bottom channel b to the trash can icon. The channel palette names will change to Alpha 1 and Alpha 2. Drag Alpha 2 to the trash can icon. You are left with 1 channel that just has the tonal values from the image. You must convert the color mode to grayscale when done by clicking Image-->Mode-->Grayscale. Supposedly, if you try to convert back to RGB with no color info you can confuse PS.(I haven't tried it)
You now have a grayscale image with a different tonal structure than just converting to grayscale. You may or may not like the effect but it's another tool in the tool pouch. Experiment and have fun!
There are other ways besides RGB-Grayscale and zeroing the saturation. If you have one let everyone know about it.
Sharpening Images in Photoshop
When sharpening an image for presentation the easiest thing to do would be to choose Filter-->Sharpen-->Sharpen. However, there's no control over the results and generally your photo will be over-sharpened to the point of looking jaggy. You can "fade" the Sharpen effect here by choosing Edit-->Fade Sharpen but you have to guess at the percentage you want to change the sharpening, and this might take awhile to decide.
I don't pretend to know the capabilities of all the Sharpening tools in the Filter dropdown menu; there's Sharpen Edges, which seems to choose the highlights to sharpen; Sharpen More, which is even more extreme than just Sharpen; and Smart Sharpen, which can do wonderful work on an image and is worth its own tutorial by some enterprise-minded Photoshop fiend.
My tool of choice is File-->Sharpen-->Unsharp Mask. It seems to be the easiest way to find the right balance between crispness and softness in an image. Try it on an image of yours. When you choose it, you'll be confronted with a dialogue box. Type in these settings and see what you think: Amount: 50%. Radius: 1.0 pixels. Threshold: 0. You can experiment as much as you like, of course, to get the most pleasing result.
I just discovered (via PhotoshopTV) a great addendum to this hint. Open your image, which is more than likely in RGB mode. Convert it to Lab Color by choosing Image-->Mode-->Lab Color. Then, in the Channels Window (activated via Window-->Channels) click on Lightness and then apply the Unsharp Mask filter. Convert back to RGB, and you'll see a difference in the quality of the sharpness. By choosing to work just on the light parts of the image, it really sets it off against the darker.
Here's an image where I've applied the Unsharp Mask filter at the settings mentioned above: RGB.
And here's the same image opened in Lab Color and then the same Unsharp Mask settings: Lab Color. What do you think?
If you have your own methods for sharpening an image for presentation I'd love it if you shared them in the comments below. Please focus on sharpening, though--save other hints for future posts!
Anyone know more about it?
How much "story" should be in a story?
Is there an expected length of stories?
How long is too long?
I'm asking because I don't want to be reported to the authorities.
One of the stories I posted I knew was long with a lot of photos. I posted it as a photolog so I wouldn't take up frontpage space.
Would you (subscribers, readers, webmasters) suggest longer stories stay in the photolog section rather than the frontpage?
First Time Posting
I am from Houston,Texas this is my first time in Photograhica and I would like to post some pictures. Would you please, tell me how to resize them or is it done by the site automatically ?
Thanks in advance for your help.
I am wanting to know how to convert a colored photo into black and white, then change a certain portion back to color. I am assuming it will have something to do with layering?
I already know how to just convert from color to black/white.
Any help will be appreciated.
What's wrong with this histogram
- Is my interpretation of the histogram correct?
- What other information do y'all need to tell if my camera needs work/replacing?
- Is there anything I can do about the images I've already taken? (In photoshop...?)
- Anyone willing to part with a Rebel for cheap? =)
Do you use an Olympus film camera?
The flash unit can overheat and cause burns. If your Olympus film
camera was purchased between 1989 and 1995, contact Olympus
at 1-800-622-6372 for repair options.
Help. I just can't get this right
What can I do next time? I can't seem to fix these. Wanted to use them in a news article. Any and all suggestions welcome.
Shooting with a Canon Rebel XT, kit lens, built in flash.
Being a subscriber
I've noticed when someone comments to a story that they can add a picture to the comment. Can I do that and if so, how?
"Photo Quality" printer
Before I run out and chase printers, has anyone had good or bad experiences with printers, paper, ink, etc?
Thanks in advance!
A question about using Mozilla
Waterproof printer paper. Kool!
You can buy "water-proof" printer paper for a little more than a dollar per sheet -- the retailer claims that it is water-proof, crumple-resistant and can be wiped clean.