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You know what would nice??? 1

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MarcusStringer

IS-IT--Management
Sep 11, 2003
1,407
AU
You know what would be nice?

To be able to rotate a bitmap Arbitrary without having to change it into a Grayscale first.
 
Um what???

What version of photoshop are you using? I use CS and I can rotate a Bitmap arbitrary without having to change the color mode at all.

If you have an older version try converting it to RGB first then rotate arbitrary then re-save as a bitmap. That way you get your effect and still keep the color.

Hope this helps!

NATE


mainframe.gif


Got a question? Search G O O G L E first.
 
Hmmmmmmmmm - didn't know this was the Mac Version.

Maybe you can't do that with the Mac version. I just tried to create a BMP myself and then open it and the color mode is still RGB and not Bitmap like in your screenshot. Perhaps that's the way the Mac version does it. Just convert your image to RGB first then do the Rotate Arbitrary.

Hope this helps!

NATE


mainframe.gif


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Thanks Nate,
But I don't think you understand.
When I say Bitmap I'm talking about Image>mode>bitmap
which is only B+W.
showimg.gif



And it seems Photoshop 6 on PC won't do it either, so I'm betting CS won't.

showimg.gif


Marcus
 
Don't bet if you don't know the odds...
You need to convert your bitmap to .psd, but will have to convert it to Grayscale first.

Once you have it as a .psd, you will need to UNLOCK the Background Layer, as your image will be titled in the Layers Palette.

Once you have converted the image into Layer '0', you can rotate it via Image>Rotate, or you can rotate it through Edit>Transform>Rotate, or simply hit Ctrl (Command)+'T' to bring up the Free Transform tool, and then rotate it by the corners...

Trust me, you have no idea of just how powerful Photoshop is, if you think a little thing like rotating a bitmap can't be done. Stay away from the racetrack, you'll only lose your money...
 
Yes, I understand all of that, thank you MadOz.
What I was winning about to begin with is:

To be able to rotate a bitmap Arbitrary without having to change it into a Grayscale first.

I can Arbitrary rotate anything else, like grayscale, CMYK, RGB, Duotone MultiChannel, LAB, all the rest except Bitmap.

When I scan in about 100 line art shots as bitmaped tiffs and I haven't scanned them all straight, then I have rotate them say 90 degrees or -90 degrees, but when I want to rotate it say, .5 of a degree I have to convert it to Grayscale which I find frustrating. because I don't have to convert grayscale pics to cmyk in order to be able to rotate them .5 of a degree, so why should I have to convert a Bitmap.

Marcus
 
Thanks for the most rediculous reply I've ever seen in here MadOz.

Trust me, you have no idea of just how powerful Photoshop is[/i}

Do you have any idea of how powerful reading the thread properly is?

Marcus is not a fool and he's not looking for work-arounds. He is 100% correct that Bitmaps can't be rotated in that mode (on a PC or Mac) and only asked why that function isn't possible.

This place is normally patronising free. I hope you will not be the exception MadOz. Especially when you obviously didn't even read the thread topic correctly.
 
Marcus

I may not understand the problem but have you tried taking the measure tool (ruler) and drag a line to the orientation of correctness you want then Image > Rotate Canvas > Arbitrary > pick CW or CCW and angle?

I do this to color bitmaps when I need to straighten the horizon etc.
 
Wow, I read the original post and it sounds like a feature request, so where are all these suggestions coming from? Of course you can rotate a color/grayscale image, but you cannot directly rotate an image in Bitmap mode.

And yes, it would be nice if you could as it would cut out the conversion step that everyone seems to be suggesting!
 
I'm guessing that the reason you cannot rotate a bitmap is due to it's nature.

The fact it only contains black/white and no levels of grey means that photoshop could not interpolate the image when it's rotated.

I'm probably wrong, but I bet that the reason you can't do it is something along those lines.

I supposed the development team could fix it so photoshop automatically and transparently converts the image rotates it and then converts it back again. I'd imagine that's not the best use of their time though :)


Foamcow Heavy Industries - Web design and ranting
Toccoa Games - Day of Defeat gaming community
Target Marketing Communications - Advertising, Direct Marketing and Public Relations
"I'm making time
 
When I created a bitmap on my PC using Photoshop CS I could not under any circumstance replicate this problem. The arbitrary function is always there. I was going to suggest the ruler thing like mscallisto suggested as that's the only way I ever use that function.

Here is a solution for you though MarcusStringer,

Open the actions palette. Create a new action and while it's recording simply change the color mode to RGB. If your layer is still locked then simply double click on the layer in the layers palette and then hit ok to the dialog that comes up. Now stop the action. Make sure you have created a keystroke for this action. Now whenever you need to do this simply hit your keystroke for the action and then do your rotation. It will save you time if you have to do this for alot of images. Then simply resave in whatever format you want to.

Hope this helps!

NATE


mainframe.gif


Got a question? Search G O O G L E first.
 
Thanks Dimoj and blueark for understanding what a Bitmap is and for letting everyone else know they might at least read the original post.

Well... thanks Foamcow your the first person who answered me.
I think your right, that answer makes sense, know I think about it. Frustrating though.

Marcus
 
Sorry Nate.
We posted together.

Please see my screen grabs above as to what I'm talking about.
I'm not talking about .BMP I'm talking about a Bitmap'd .TIF file which can only be Black and White Bitmaps in Photoshop can not contain colour. Only when the file is saved as a .BMP

Marcus
 
Ok my mistake then. In your action simply convert to greyscale first like you already know to do. What I'm getting at though is the fact that if you do this alot you will save yourself time by creating a siblge keystroke action. Even further on this topic is the question "are all images rotated the same direction and same angle" if so incorporate that into your action as well and then do a batch process. Batching your images using this action will take no time at all and your frustrations will be gone.

Hope this helps!

NATE


mainframe.gif


Got a question? Search G O O G L E first.
 
Hahaha, you just dont understand :)

Yeah, removing that extra useless step would be nice and I could use it on many occatioins when im scanning peoples signatures in bitmap and its just that little bit off.. I feel your pain.


They make a plugin to let you edits on 16 Bit images, think they could make something to let you do arbitrary rotates on bitmaps.
 
MY HEAD HURTS! Why won't people read previous posts before responding? I think I read the same answer about 5 times, which in Marcus's very first post said he was NOT looking for! Marcus of all people here KNOWS to change the file to greyscale! Everybody knows that. He's looking for a reason WHY. ARGH

PS - Hope this helps!
 
You know what I wish?

I wish that, when you get a package of prints from a photgragher, they were not invariably curled - making it next to impossible to get them straight on the scanner in the first place.

Then I would not have to dick around with flipping the thing .2 degrees clockwise, undoing, redoing, undoing, doing something else.
 
Oh...goodgod...thankyou...Finally

Although, I think Nate's finally on the same page.

He was suggesting making an action which turns Bitmap to grayscale, rotates it then turns it back to Bitmap.

:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D

Marcus
 
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