I scanned some images to Tiff format and when I bring them into Gimp I can't seem to get the threshold effect to work. The other color effects work but not threshhold. I check with other Tiff images I have and they work but not for this new set (done on a different scanner).
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This was exported to tif and sent to the printer, the glow is a white outer glow.
As I usually do I exported the whole thing to a TIF and low and behold black lines in the print.
This was the bullet proof way of getting what you saw on the screen to hadcopy but sadly no more.
Can this be addressed in SP1, as it puts a serious hole in all the signies bag of tricks for that matter any body who wants to output special EFX from Corel.
I like to repair books with missing pages. Often I can get digital images in tiff or PDF format, but they are often 'dirty', like the one attached. This one seems a good example of the sort of thing I would need to work on.
I need to reconstruct the image, which I think would mean:
i) getting an image that is complete and rectangular with a bleed out of in the same colour.
ii) remove blemishes like library marks, names etc.
iii) reconstruct the decayed text as sensitively as possible.
I want to use the Threshold Alpha command on a Layer of Solid Noise, but nothing happens. If I set the threshold to 255 everything goes transparent, anything below that the clouds are supremely unimpressed. It's an RGB image, has an alpha channel, no Alpha channel lock, the Threshold tool works fine. I also tried creating another test picture with several gradient in greys and colors, and they are equally unaffected by Threshold Alpha.
I'm using GIMP 2.6.11 on WinXP SP3.
i tried restarting gimp but it did not fix my problem. All of a sudden, out of nowhere, my fuzzy select tool selects WAY too much even at a threshold of 1. at 2 it just selects the whole picture.Re-installing did not fix.
i am creating black/white based icons. So it is a 48x48 image. i am mainly trying to fuzzy select black, white, and transparent selections. As you can guess, it has become impossible now and i don't know what i did.
EDIT: Okay so it actually isn't selecting "too much" per-say. i willt ry and explain the best i can here:
Black and white image with the exception of some shades inbetween.Select fuzzy select and put threshhold at 1. Click. Selects all the white (i actually think it misses some). i hit SHIFT and click on a pixel that is slightly not white. VERY SLIGHTLY. In fact, it may actually be white. It fuzzy selects EVERYTHING.
Another example on an image that is Black and Transparent (with shades inbetween) Slect black on threshold 1. It selects All the black AND all the shades inbetween. Eveything except flat out transparent. i hit CTRL and select a shad einbetween and it deselects everything.
EDIT 2: Doesnt matter the threshold apparently. It will do this on any.
EDIT 3: The solution, after all, was so save these problematic images as JPG and then open them as the JPG.
I would like to obtain a black and white image of a photograph of a book page.
My attempt to do this is by running the threshold function over theentire image. This appears to give the desired result, but onlylocally. It appears that the optimum parameters of the thresholdfunction vary by position (i.e., according to some scalar field), withone extreme in the center of the glare and then radiating outward. Sojust running the threshold function over the entire image withconstant parameters always gives sub-optimum contrast for 75% of theimage. Will I have to find a way to run the threshold function withnon-constant parameters, or is there some other tool to do the job?
I have encountered with a Photoshop TIFF image.
This image is a CMYK 8-bit TIFF - no layers - everything very basic (so it seems). I place this image as a link into Adobe Illustrator, then save this resulting file as a PDF.
I open the PDF with Adobe Acrobat, then I use Enfocus Pitstop to check the properties of the image. The Pitstop Inspector tells me that the image is indeed CMYK, but it contains only 1 channel and the image is "Indexed".
When I try to output this file to a printer, I only get the Cyan channel. It seems that the Magenta, Yellow and Black channels are "hidden" or something similar.
Throughout this entire process, the image appears on screen (in all applications) as a full colour image, ie, I get to see all of the channels - not just the Cyan channel.
I have found that if I save the original image as a Photoshop PDF or EPS, everything is fine.
I have also just completed another test and found that if I change anything about the image size (eg change from 300 dpi to 299 dpi) everything is also fine.
I am not able to attach the image, as it is too big for the 200KB restriction of this site, and I cannot compress it that far.
Has any body heard of this type of thing before?
Is there an easy way to convert a jpg. or tiff image to a Illustrator format?
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