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05/28/2002 08:19:28 AM · #26 |
Originally posted by Kimbly:
Are there any free programs that have a channel mixer for Mac OS 9?
I really really don''t think so.
How long would it take to download a trial version of Photoshop 6 on a 56 K modem?
WHat is the file size?
Would channel mixing make any difference (as opposed to curves/desaturate) if your image is mostly black and white to begin with?
no, probably not. although, since a digital camera records the information in color on 3 channels, even though it appears black and white, its still nice to be able to accentuate the channel that contains the information in the pic you would consider the most salient. for example in gordon''s channel mixer tutorial, did you notice that in one of the channels the number in the dirt disappeared? if i wanted to enhance those numbers, i would de-emphasize that channel and boost the others that had the info I wanted to show.
Actually, does anyone on here have photoshop elements and if so, does it have the channel mixer?
you might also want to check out graphic converter. this is one of the better mac shareware image manipulation programs.
//lemkesoft.com/us_gcabout.html
[/i]
* This message has been edited by the author on 5/28/2002 12:27:36 PM.
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05/28/2002 08:22:02 AM · #27 |
Originally posted by drewmedia:
I can''t believe we''re arguing about what black and white is
Drew, you shouldn't be too surprised. They're going to find something to argue about no matter how clear and defined the challenge is.
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05/28/2002 08:25:07 AM · #28 |
Originally posted by drewmedia:
I can''t believe we''re arguing about what black and white is
Yeah... you'd think it would be pretty clear... it's either black and white or it's something else. The whole issue seems pretty black-and-white to me.
Sorry, couldn't resist....
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05/28/2002 08:31:19 AM · #29 |
Originally posted by drewmedia:
Originally posted by irae:[i]
I''m anticipating lots of really bad conversions (grey & grey instead of black & white...
I can''t believe we''re arguing about what black and white is[/i]
I'm thinking irae's quote was actually a comment on the poor black and white pictures we'll be seeing. (In other words, he's expecting a lot of drab grey-out pictures with little contrast.) Correct me if I misinterpreted you, irae. |
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05/28/2002 08:35:31 AM · #30 |
> Would channel mixing make any difference (as opposed to curves/desaturate) if your image is mostly black and white to begin with?
desaturate leads to a picture with no pure black or white in it, unless either was already there. channel mixing gives you the opportunity to do fun things with it. i suppose the selective/replace color tools work, too.
if you subscribe to the neccesity of pure black and white in a b/w photo you'd probably frown on desaturation only.. i dont really have an opinion on that. i like using the selective color tool to eliminate noise and tweak skin tones to more marketable colors. i still desaturate afterwards for b/w, to assert there's no color, though. maybe that's a good use for it. |
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05/28/2002 08:37:41 AM · #31 |
Does all this channel mixing apply to pictures shot in black and white right out of the camera? or is it just in post processing a color image to black and white
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05/28/2002 08:44:46 AM · #32 |
Originally posted by jonathans:
Would channel mixing make any difference (as opposed to curves/desaturate) if your image is mostly black and white to begin with?
desaturate leads to a picture with no pure black or white in it, unless either was already there. channel mixing gives you the opportunity to do fun things with it. i suppose the selective/replace color tools work, too.
I''ve been using curves and levels to ensure that there are both pure black and pure white after desaturating. I''m sure channel mixing gives more control, but I don''t have that right now.
* This message has been edited by the author on 5/28/2002 12:45:12 PM. |
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05/28/2002 08:48:35 AM · #33 |
Originally posted by magnetic9999:
Originally posted by Kimbly:
Are there any free programs that have a channel mixer for Mac OS 9?
I really really don''t think so.
I don't either, but I figured it couldn't hurt to ask.
Actually, does anyone on here have photoshop elements and if so, does it have the channel mixer?
Yeah, my mom has it. No, it doesn't have a channel mixer.
you might also want to check out graphic converter. this is one of the better mac shareware image manipulation programs.
//lemkesoft.com/us_gcabout.html
Thanks. When I used to have that 2 years ago or so, I think I mainly um...converted graphics from one format to another. I don't remember that it had much in the way of image manipulation, but I probably wasn't much looking for that, so I'll check it out.
[/i]
[/i]
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05/28/2002 08:49:30 AM · #34 |
Originally posted by Maverick:
Does all this channel mixing apply to pictures shot in black and white right out of the camera? or is it just in post processing a color image to black and white
well channel mixing isnt much, actually. menu(image > calculations) is much more interesting.
and: you dont really have color channels in a greyscale image, do you? =]
maybe ill write a tutorial tonight. |
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05/28/2002 08:51:37 AM · #35 |
Originally posted by Maverick:
Does all this channel mixing apply to pictures shot in black and white right out of the camera? or is it just in post processing a color image to black and white
Channel mixing is really mostly applied to a colour image and gives you a lot more control than just making do with what the camera decides is greyscale. Some example of the differences here
You could use curves/ levels on a black& white image to stretch the contrast and make sure you actually have black and white in the picture.
As to arguing about black and white - nobody is entering black and white pictures, they are all at least greyscale, or just RGB with all the values set the same, certainly you are viewing them on a screen that is showing RGB values so we could debate it all day :)
In addition, just to be pedantic, 'traditional' black & white photographs are usually toned (e.g., selenium prints) so that they have a more yellowish white than a pure white.
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05/28/2002 09:02:38 AM · #36 |
i'd say curves, levels, selective color all give you more control.. but they wont make your color photo black and white. and they're essentially useless if it already is.
channel mixing is for undefining the line between two channels, i guess. calculations is more like the layer blending options.
i stick with auto-levels.
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05/28/2002 09:04:21 AM · #37 |
| ah, what he said re: the mixer. thats good stuff. |
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05/28/2002 09:10:55 AM · #38 |
Originally posted by jonathans:
i''d say curves, levels, selective color all give you more control.. but they wont make your color photo black and white. and they''re essentially useless if it already is.
I''ve recently begun using curves to selectively adjust the contrast in a photo. I''m much better at doing it in black and white (after desaturation) than in color, since I only have one channel to think about. Though channel mixing would provide an extra amount of control, I certainly wouldn''t say curves are essentially useless.
* This message has been edited by the author on 5/28/2002 1:18:11 PM. |
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05/28/2002 09:15:51 AM · #39 |
true. not essentially. perhaps theoretically, given the opportunity to use a complete software suite and assuming one knew it inside and out. which i actually dont.. pretty close =
i will play with it later today to see what i can see.
* This message has been edited by the author on 5/28/2002 1:20:07 PM. |
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05/28/2002 09:21:55 AM · #40 |
i prefer calculations, as i think i wrote in this or another thread. but anyways ...
hey, gmg, where ya been?
* This message has been edited by the author on 5/28/2002 1:24:26 PM. |
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05/28/2002 09:35:09 AM · #41 |
Originally posted by Kimbly:
Thanks. When I used to have that 2 years ago or so, I think I mainly um...converted graphics from one format to another. I don't remember that it had much in the way of image manipulation, but I probably wasn't much looking for that, so I'll check it out.
yeah, pretty descriptive title, no? nah, it does way more than just that. and it does have a form of channel mixing, but i dont have a mac handy here at the ol' workplace to check out whether it has a monochromatic channel mixer. |
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05/28/2002 09:41:12 AM · #42 |
Originally posted by magnetic9999:
Originally posted by Kimbly:
Thanks. When I used to have that 2 years ago or so, I think I mainly um...converted graphics from one format to another. I don''t remember that it had much in the way of image manipulation, but I probably wasn''t much looking for that, so I''ll check it out.
yeah, pretty descriptive title, no? nah, it does way more than just that. and it does have a form of channel mixing, but i dont have a mac handy here at the ol'' workplace to check out whether it has a monochromatic channel mixer.
Cool. I''ll add that to the list of "things my friend with a CD burner should download for me at his office" ;-)
* This message has been edited by the author on 5/28/2002 1:51:18 PM. |
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05/28/2002 09:49:48 AM · #43 |
Originally posted by Kimbly:
Originally posted by drewmedia:
[i]From the challenge wording: "as long as the final result is in black and white". There's really not room for interpretation there.
I'm gonna give everyone who uses grey a 1 :-)
[/i]
Grey is black and white, just a different mix.
Black 0 level of light
white 255 level of light (based on 8 bit pixel0
The grey is a constant gradient between the two.
Makes for an entertaining experiment using the input slider in the PS (PSE) levels function.
David
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05/28/2002 10:00:30 AM · #44 |
| you evil mac users are like a cult, i swear. good luck with that. |
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05/28/2002 10:05:20 AM · #45 |
Originally posted by jonathans:
you evil mac users are like a cult, i swear. good luck with that.
Don't worry. One of these days we'll all commit mass suicide and you won't have to deal with it anymore.
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05/28/2002 10:07:11 AM · #46 |
Originally posted by jonathans:
you evil mac users are like a cult, i swear. good luck with that.
Attention all Evil Mac users...party at my house Friday...
I'm sorry to inform you that, due to the shortage of rain we've been having lately...the ceremonial sacrificing of the PC tech will have to be post-poned until next week.
:0P
Macs rule. |
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05/28/2002 10:25:19 AM · #47 |
| haha. i understand that macs are better for graphic design. this is not something i can argue, for i have used them for such purpose in the past. in fact i dont think id have photoshop right now if i hadn't been forced to use it on an imac at my previous job. but i'd never buy one; i build my own pcs. and obsd kicks the crap out of ydl. |
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05/28/2002 10:34:52 AM · #48 |
Originally posted by jonathans:
haha. i understand that macs are better for graphic design. this is not something i can argue, for i have used them for such purpose in the past. in fact i dont think id have photoshop right now if i hadn't been forced to use it on an imac at my previous job. but i'd never buy one; i build my own pcs. and obsd kicks the crap out of ydl.
But the Dark Side is so much easier. |
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05/28/2002 10:56:50 AM · #49 |
I wouldn't go as far as to say that Macs are *better* than PCs for graphics design or not... someone explain to me *why* a Mac is better... I'm ignert...
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05/28/2002 11:01:28 AM · #50 |
Originally posted by jmsetzler:
I wouldn't go as far as to say that Macs are *better* than PCs for graphics design or not... someone explain to me *why* a Mac is better... I'm ignert...
if you look at top PC to top Mac, mac will win. You also get more support on Mac and the majority of the Art community use Macs. Besides that the two machines are comparable. Photoshop on Mac and PC are identical except for the appearance of the interface (everything is still in the same place).
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