CorelDRAW X6 :: Trace Gives Unpredictable Results When Operating On Cropped Bitmaps
May 17, 2013
If you import a bitmap into draw and then use the "node edit tool" to crop parts of the image, subsequent tracing causes unpredictable results... a random part of the image gets traced...
I just started using CS6, jumping from CS3. A major tool I use is Live Trace, and I have custom settings for that. I cannot find a way to make Image Trace behave the way Live Trace did for black and white line drawings. The results I get in CS6 are far inferior to those I got in CS3 in terms of retaining the look of the original raster image. Otherwise, I will have to leave CS3 installed just to do my Live Trace.
Here is a sample of what I mean. You can see the quality degredation in CS6 compared to CS3. (And it's much more obvious when it's full size and full resolution.)
My settings used in Live Trace (CS3) were:
The settings I tried in CS6 that gave the above result were:
When using image trace in CS6, illustrator seems to be shifting the results. Is there anyway to prevent this. I have several images that I am tracing along with other vector elements that need to stay in alignment with each other.
The Blue is the location of the original image and the black is the tracing result. I'm seeing this shift in each of the view modes and regardless of which preset I use. I've also tried leaving the image linked and embedding the image with no difference.
In addition, I am having a hard time getting black and white images to trace to the same quality I had in CS4. As you can see I'm getting pinched sections on lines even with a Path setting of 97-100% and Noise of 1 px. I also tried a path setting of as low as 20%, the pinching of the lines was gone, but it was so over generalized that I lost a lot of the other character.
In CS4 I was able to use path fitting 2px Min area 10px corner angle 20 and get this much better result
the white hole is preserved, there is no pinching of the line. I keep reading how the new image trace is supposed to be so much better, but I can't seem to find any evidence of it in a simple a black and white image.
I'm working on pdf image files, 300 dpi, and I want to use the Image Trace tool to vectorized these ones. The result has to be under 4 colors, and the file is a mozaic of photos calibrated 3mm x 3mm.
The purpose is to vectorize the whole image ( composed with approximately 800 photos )I did different tests with the settings of the Image Trace tool with samples of 12 x 12 mm ( 4 photos x 4 photos ) and the result is correct. But when I try to do the same with the entire image, the result is just horrible The entire image is sized 200 mm height and 130 mm width, but the import format is exactly the same than the samlpes I made my presets on.
I was thinking that Illustrator should act the same with the full image than with the small one, it just took more time to calculate the rendering, but apparently not.
I've set the cell height's of a table to some reasonable height after creating the table.Whenever I try to enter some text in any of the cells, either the table resizes to the original height or the currently selected cell (or whatever CorelDRAW believes might be the "selected" one) becomes so huge it spans a couple of rows, making it impossible to click on any of the cells below that currently active cell.
CorelDRAW Graphic Suite X6.4 @ Windows 7/Windows 8 - 64 Bit, Windows Server 2008 R2, Windows Server 2012
I just noticed that bitmap images always get jagged edges when rotated in Corel Draw X5. I first thought it's just the editing preview on the screen, but I've noticed that the edges are visible even when exported to any bitmap at 300dpi. So now I worry if the jagged images will also be visible in print!?
note that imported images are all in approx 12MP resolution, so when I import them, I actually reduce the size by converting the photo to 300dpi bitmap with anti-aliasing ON. I tried rotating prior to and after the "Convert to bitmap 300DPI" command. The edges are always jagged. Other parts of the image besides the edges are well anti-aliased.
I installed X6 the other day and now and again I notice it prints a faded blue box around a bitmap. I have seen this happen in older versions of acrobat, but not sure why this would happen in X6. I went back to X4 and it prints just fine.
I've found a couple of discussions on creating reflections for vector objects, but what about bitmaps?
Whilst searching through stock photos, I started noticing some of those common isolated images on a "reflective" surface are rather lazily created resulting in just plain wrong reflections. I'm talking mostly about those "people standing around" images, but it could apply to anything.
Here's an example of what I mean:
Now if these folks were standing on a reflective surface, their reflections would meet where they touch. Note how some appear to be standing on one foot, because the reflection of the other foot doesn't meet. Or it looks like they're standing on their toes because the heel is off. Obviously this was done by simply flipping the image and fading it.
Here's a link to the stock photo if you want to see the whole thing. Here's another one where everyone appears to be standing on their toes.
A couple of times I've attempted to correct this by creating my own reflections. With some fudging and distortion of the reflected outline, I managed, but typically had to have a very fast fade. Easier to create a vector trace, then shade it grey and use that. It gets increasingly more difficult the more distinct and clear you want the reflection. Studying reality, if someone were standing on a mirror, their reflection would have the perspective of looking up at them from the bottom.
So how would you approach creating a reflection from a bitmap where there is no straight line defining the reflection line?
I received an PDF file from my client's designer which was generated from AI. When I import it into CorelDraw, the bitmaps are in broken pieces, and the tone element is also broken into solid pieces.
I wonder if the problem is with the PDF or it's CorelDraw.
I have been having an issue with the Lens Transparency effect and bitmaps . When I apply a square lens transparency over a square bitmap and group them it looks fine on my screen but parts of the final image are always missing when I print . I have duplicated this error a number of different ways and with two different video cards . I am running XP and have 3 gigs of RAM .
Is there a way to have Corel Draw re-import images I imported into Draw? I have a bunch of images I imported, power clipped, and did a few other things to but I did not edit the bitmap itself. I'm using CD to outline the bitmap to create a white back ground for the image. Now I adjusted the bitmaps in After Shot Pro so it looks better and now I want CD to use the new bitmap and not the one I imported but I dont want to go through all the power clipping ect ect again.
I named all the files the same so is there a way for CD to re-import all the bitmaps again?
I have a document which contains around 100 RGB bitmaps arranged in a collage. Now this is going to be printed offset, delivered via pdf with cmyk swopv2 color profile.
Most of the rgb to cmyk converted images look best with relative colormetric as they're fairly close to the cmyk gamut and this maintains the saturation and colors I'm looking for. However, some wider-gamut images look much better with perceptual rendering intent.
Is there any quick way to pick my rendering intent when doing individual bitmap mode conversions in draw, so I can hand select which images are converted using relative colormetric and which using perceptual?
i.e. click one bitmap, menu bitmap, mode, cmyk using perceptual,or menu bitmap, mode, cmyk using relative colormetric?
Right now the quickest way I can seem to achieve this is to manually set the whole color management to perceptual, select by eye and convert those images to cmyk that are well outside the cmyk gamut, then set it back to relative colormetric and generate the pdf cmyk which then makes those rgb images not manually converted while it was set to perceptual be converted via the now set relative colorimetric. It works, but I wish I had more interactive control on the mode conversion bitmap by bitmap.
I am an Illustrator user but I am working with a company that uses CorelDraw. Recently I received several large files from them with bitmapped images within the CorelDraw files. I don't know how they are saving or exporting them, but when i receive them they look like standard Illustrator eps files. However, when I open them, the bitmapped files are embedded instead of linked, which is a no-no in Illustrator. These embedded files have a default resolution of 72 dpi no matter what the original resolution was. So, my question is, what is the standard way CorelDraw brings in bitmapped files and is there a way to export files so that bitmapped files retain their original resolution.
I've just installed CorelDraw X6 onto a W7 PC. Pasting bitmaps from clipboard is not working. Nor is bitmap editing when a bitmap has been imported into a document. I've loaded X6 onto two other computers with the same result (or lack of).
I have a problem printing bitmap images on CorelDRAW documents in my work computer (Windows Vista Home Premium 32 Bit). I have a HP 3535 inkjet printer, and It was prinitng normally for some time, but one day the printer suddenly stopped printing images from the CorelDRAW documents and only prints text and vector images. The same happens in Photo-Paint, it simply prints in blank.
I Tried to restore the program to default settings using the F8 command with no luck. This really annoying and I need to print bitmaps for my work. This happens in all my documents...
I create vector drawings in Microsoft Office Visio and I need to be able to convert raster images from PDFs into vector images compatible with Visio. I've tried tracing the bitmap with various options but the line quality produced when saved to a .svg file is not adequate for our needs. Images from a PDF that are not embedded work perfectly by saving to a .svg file, but the bitmap comes in as one unusable entity. Simply put, can X6 convert embedded bitmaps from within PDFs into vector files?
I have recently upgraded from X4 to X5 and while when I first installed it I was able to click on a bitmap and get CorelPhotoPaint to launch - it now says Failure to launch server application. I have tried the F8 tip while opening both Paint & Draw, repairing the installation (from both the hard drive and the disk), and removing and reinstalling. I used to have X4 and even X3 on my system but have removed both of those versions. And yes, I have associated the files although within Corel the ticked boxes do not seem to stay put.
What I want to do is something like the envelope tool, but actually stretch an image from the center-points (kind of like the old pincushion settings in a CRT monitor):
I played around with the mesh warp tool, but that thing seems nearly impossible to fine tune even when I use the magnifier.
The tool "Warp Brush" would probably work with some delicacy, but seems to be exclusive to Paint Shop Pro, and the smear tool obviously will not work...
Recurring problem i'm having with bitmaps im trying to export to our large format printer. Some bitmaps are coming up with a grey type filter or lens that corel is automatically putting over my photo.
When i export this' filter' remains on the picture.
If i hit 'edit bitmap' the photo comes up normal with all the colours as it should be. Hit 'save' and it goes straight back to having a grey filter over it? Its only with some photos and the other ones are the same profile on the same page? It seems to be always the physically largest one in size (not dpi) I have tried converting to a cmyk bitmap instead of RGB.
After the X6.2 service pack everything looked fine at first, but when dropping bitmaps, Draw now regularly complains about missing the color profile. Of course the bitmaps have profiles embedded, and Draw had never complained about those same bitmaps before. Well, I have everything in AdobeRGB or IsoCoated v2 CMYK, and these are also the standard settings in CorelDraw. So it didn't make a difference eventually, colors remained the same to the numbers.
However, I re-calibrated my display a little later, installed the new profile, opened Draw and was shocked: stridently over-saturated colors in bitmap images as well as in vector graphics, nowhere near their appearance in four-color print (they had been pretty close before). In other color-managed applications everything looks fine, only CorelDraw is concerned. It still does respond to display profile changes, it does adjust colors when a different profile is installed, but the over-saturation is always there. Color definitions are not changed and output is as ever, it is only Corel's rendering of display colors.
I believe that this reaction to a change of the system display profile and the ignorance of profiles embedded in bitmaps go back to the same problem with color management.
Is there a registry hack or something to make it recognize color profiles properly again, or do we have to wait for the next SP to fix a bug brought in by the last?
We have a new Roland printer, an LEJ-640, which prints in CMYK plus white and clear gloss.
In order to print a white bitmap, I must apply a spot color to the bitmap. I used the Bitmap|Mode|Dutone to apply the white spot color and it seems to work correctly--it shows up as a spot color when I use the print dialog to preview separations.
When I use either print to file with the RolandVW print driver or File|Publish to PDF, the spot color on the bitmap is not preserved, Versaworks does not recognize it as a spot color. Color output is set to "Native". However, a vector object on the same page with the same spot color applied is recognized as a spot color.
The pink part in the versaworks screenshot indicates white spot color, as you can see only the vector object is recognized.
When I'm in Corel Draw, I've imported a picture, converted the picture to bitmap and go to edit bitmap in Corel Paint it says FAILED TO LAUNCH SERVER APPLICATION.
I have a picture of a logo I want to trace, is their like an auto trace that will make it look even? cause when I use that one tool to trace is hard to get it to the right curve.