Rgb To Cmyk Issue

Hi,
I am very fond of Colour alterations on a photo through manipulating RGB or CMYK channels. I recently stumbled upon a method that gave a rather very interesting colour effect I think. I deleted the blue channel out of my RGB image, that left me with cyan and magenta channels. However the problem is that I cannot save that image with the usual formats such as PNG and JPEG. I can only save it as PSD and a bunch of other technical formats. I suppose it is because a channel is missing. I have tried to fill the blue channel with black but that did not give the same effect. Is there a way to save the image with that colour effect, or somehow achieving the exact same result through a method without deleting a channel?
I'd really appreciate your help. Merry Christmas and happy new year.

Hi Guys,

I have attached a .psd file, what i need to do is add a 1% min dot to the PMS 382 in the background but have the CMYK images knock
out of the spot colour. Everything i do leaves the 1% in the CMYK areas as well...

Any help would be greatly appreciated.

Thanks Duncan

Hi All

I am reasonably new to photoshop but am wanting to get a lot better! I am quite interested in being able to change the colours/livery of objects in photos most notably trains due to this being one of my main interests.

I have an image of a train and I want to edit the livery but keep an element of realism.so It doesn't just look drawn like a cartoon. I have made an attempt at this but I am not massively happy with the results. I have uploaded both a copy of the original image and a copy of my amended image. My main problem is the lack of realism, because I am trying to go from a very light colour to quite a dark blue I seem to lose a lot of the detail from the original image.

I have also uploaded an image of the sort of thing I would like to achieve. The person who has done this makes a really good job of them and I would love to be able to achieve similar results.

The way I have created my image is simply but creating adjustment layers for hue and saturation and levels and played with the settings until I get something like.

Does anyone have any tips on how I can make a better attempt at changing to colour so it retains an element of realism?

Original Image
My attempt
Quality I would like to achieve


Thanks In advance.

Chris.

Hi People,

Okay, on google earth you have the option to overlay images onto areas of the planet. For me this is useful to see where a cave runs in respect to the overlying land above. It gives you the option to change the Opacity of the overlain image to show more image or more 'earth', which is nice. However I got to thinking and decided to try and remove all the background white of the survey, then overlay it giving a clearer image of the surrounding land. Unfortunately I end up with the the deleted white showing as brickwork (I understand its to show what is gone and whats left in Photoshop) when I overlay to google earth.

My current survey is a TIFF file.

So is it possible to save an edited image in a file type that when overlain wont show the brick image you get on Photoshop of deleted background.
Is there a file type that can achieve this, and if so what is it?

Thanks in advance

Joe

Hi I am just wondering how to achieve this effect (as seen in the following attachments).

The buildings have bold colours with barely any detail. Is this something that can be done using photoshop filters or does it need to be done by hand i.e drawing outlines with pen tool then filling with colour?

I've tried the cutout filter but the building appears to be a bit too detailed. I just want the colours to be reduced to 2-4 colour blocks?

Thanks.

Need to convert a CMYK+Spot EPS file to a CMYK+Spot TIFF. I have been reading what I can about the process, but must be missing something. I was able to create a new file with the exact same pixel dims and copy the channels into the new file. However, it is not quite right. Is there a clear cut tutorial somewhere that can help me?

Thanks!

Hi Guys,
Im new to the forum and have a tricky question.
Ive been given a large amount of designs that have been colour separated for use by screen printers.
I will go through the image details below but history of the images is sketchy to say the elast.

The layer shows a black and white image and has been saved in grayscale mode.
There are numerous colour channels which are unselected. When you select them all the colour fills in gradually until its looks great. But this doesnt actually change anything eg Layer, so that is always black and white.
How can I get the printed output to look like the image when all colour layers are selected.
Im not screen printing, I am digitally printing so dont need sep colours.
I have attached an example design so you can understand better what I mean.
Any help will be massively appreciated guys.
If I can find an easy way to do this I will hopefully get a script designed that will convert 100s in bulk. Fingers crossed as right now Im lost.
Thanks guys
Neil

Hi folks, newbie to the board. I'm using Photoshop CS6 and have hit an issue that I can't get to the bottom of and was hoping someone could help.

I've completed an image for a client. The original involves many layers, and I have got to the point when I want to merge everything down into a PDF for them to send to their printers.

Problem I am having is that when I try to directly save as a PDF or merge down the layers in a copy of my main PSD file, I am losing certain layer styles.

I have tried creating a blank layer below an offending layer and hitting CTRL + E, I have tried creating a blank layer, hiding all but the offending layer and blank layer and merging visible, I have tried Layer - Rasterize Layer Style, I have tried turning the layer into a smart object and then rasterizing (I lost the layer style as soon as I turned it into a smart object, even though it is still present in the smart object itself), and I have tried turning the layer into a group and merging the group. I have also tried saving the file in a number of different formats to no avail. I don't know what else I can try and why none of this has worked! I've also tried right clicking on the FX in the layer palette and chosen "Create Layers" at which point I get a dialog: "Some aspects of the effects cannot be reproduced with layers", and I get the same result. Most noticeable style that disappears is the drop shadow.

Weird thing is this isn't the case for every layer. I've particularly noticed it happens on text layers that have been text warped. However I've tried rasterizing them before trying to merge and that hasn't helped so I can't see how that is the problem.

I hope someone can help, I am totally stumped. If it makes a difference the mode is CMYK Color, 8 bit.

James

Can somebody using PS CC or PS 2014 please confirm whether the file names are correct for split channels.

Procedu
1. Open a file, (must be flattened if a layered PSD).
2. From the Channels Panel Fly-Out menu choose 'Split Channels'.
3. The file names of the resulting documents should be:

For RGB or CMYK file 'butterfly.png':
butterfly.png_Red or _Cyan
butterfly.png_Green or _Magenta
butterfly.png_Blue or _Yellow
butterfly.png_Black

My results a
AR_Red
_Green
A_Blue

These results are the same for every file I've tried. The original filename is totally disregarded.

Is this just me or is it PS CC and PS 2014?

Your feedback is appreciated.
Thank you.

Regards.
MrTom.

Hi,

Today I saw a picture that looks different on black background and on white. There is an example attached. Does anybody knows how to do this? I found an explanation on the link below, but doesn't worked for me (when I create the subtract layer, it doesn't result on a transparency layer):

graphicdesign.stackexchange.com/questions/9088/image-that-looks-different-on-black-background-and-on-white

All I know is that the final image must be a PNG file, with transparency on it... But don't know how to merge the two images to get the effect of different images depending on the background color (black or white).

Can anybody help me to understand that effect?