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316  Technical Discussions / Articles / Re: March 2010: Smart Photo Printing on: March 11, 2010, 07:54:56 PM
Mike,

Will there be a follow up to sketch the differences between Qimage and Lightroom? I have done my best to praise the virtues of Qimage in discussions like that but could use some good ammunition for another encounter. Not on this list. To mention are the Softproof not available in Lighroom, the not so transparant ProPhoto based CM solution, the arbitrary choices to control print sharpening with gloss or matt papers. The lack of anti-aliasing on downsampling. I guess there are way more.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/


317  Mike's Software / Qimage / Re: v2010.204 issues/comments on: March 08, 2010, 04:21:39 PM
Is Qimage supporting more image formats fully, for example 16 bits PNG etc at the same level as Tiff?

Yes.  That, and more.  Now supported are 16 bit/channel TGA, BMP, PNG, "per-channel" TIFF files from PhotoShop, and other previously not supported flavors of those and other formats.  No change to PSD since Adobe doesn't support that format any more.

Mike

That is nice, I had given up on PNG 16bit due to the incompatablity in more applications. Unlike compressed 16 bitTiff it actually gives smaller files. Will a (virtual) original size set in Photoshop correctly be recognised in Qimage?

Edit: Trial done, it does I see, very nice.
But what was an AdobeRGB assigned JPEG converted to 16bit PNG in Photoshop, Qimage doesn't see the assigned profile anymore and assigns sRGB itself while reloaded in Photoshop it still is AdobeRGB assigned. BTW, would it be a good idea to give a Qimage assigned space (sRGB in default) red characters in the print queue while an embedded space profile keeps the black font?


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/




318  Mike's Software / Qimage / Re: v2010.204 issues/comments on: March 08, 2010, 08:35:43 AM
http://www.ddisoftware.com/qimage

v2010.204     03/07/10     

Priority: Low     

v2010.204 supports a much wider range of formatting options with regard to image formats like TIFF, PNG, TGA, BMP, etc.

Mike


Mike,

What does it mean "formatting options" ?

Is Qimage supporting more image formats fully, for example 16 bits PNG etc at the same level as Tiff?


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/


319  Mike's Software / Qimage / Re: Color mangement on: March 06, 2010, 11:21:22 AM
Quote
I thought Qimage  applied a sRGB profile to any file that doesn´t contain any,
That is correct ..... BUT ....
.... When Qimage "Printer icc" is set to OFF, the print is NOT colour managed and therefore the image profile is irrelevant.

Quote
although the setting from Qimage or printer driver was "No color adjustment".
"No Colour Adjustment" is the DRIVER setting, not Qimage. Setting from within Qimage just means that Qimage remembers it.

Printing a target is a special case where the driver has to be set to "No Colour Adjustment" and "Printer icc" is set to OFF in Qimage.

When printing an image and the printer profile activated in Qimage and "Printer icc" set to ON, it is important that the DRIVER is set exactly the same as the it was for the target print,  No Colour Adjustment, paper type and print quality etc.
"No Colour Adjustment" is required for colour managed printing so that the conversion process Qimage does is not corrupted by the driver. In other words, double profiling in some form is prevented.

BTW. your English is very good  Smiley Keep the questions coming if mine is not  Roll Eyes
Terry.


Some drivers do not have an option for No Color Management. In that case "let application control CM" is the best choice in the driver + Qimage CM on Off. According to Mike with Qimage CM off there will not be profile data transfer to the driver and the driver will only use the raw RGB data. Of any file so including profile creation targets.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/





320  Mike's Software / Qimage / Re: Compressed-sensing algorithm on: March 03, 2010, 02:23:57 PM
More than a year ago I mentioned these kind of scaling routines:
http://en.wikipedia.org/wiki/Pixel_art_scaling_algorithms

I looked into those too... a year ago.  They are awful for photographs!  They only work for pixel art (games and graphics with predictable line boundaries).  In photos they produce pronounced artifacts because they try to make connections that don't exist in the more random world of photographs versus the predictable world of computer graphics.

Mike

I know, the message that went with it mentioned another use. The other con was that their use was limited to certain upsample ratios.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/


321  Mike's Software / Qimage / Re: Compressed-sensing algorithm on: March 03, 2010, 08:51:29 AM
More than a year ago I mentioned these kind of scaling routines:
http://en.wikipedia.org/wiki/Pixel_art_scaling_algorithms

I think it isn't a bad idea to put possible additions to Qimage on the table, in the end it is Mike who decides and he is critical enough to sieve the silly things out. I do not ask that things like these extrapolation routines are implanted, it is just to bring them to the attention.

There is a list of wishes however. The better metric feedback request as put forward again some days ago is at the top of my list of unfulfilled wishes. The other one is the coloring of the mark corners shifted from the border color option to a place among the general preferences. I asked for the coloring choices and got it but the way it is implanted is a tricky one in practice. Next job printed may have the border light grey if you are not paying attention to that setting. In preferences you can have that mark corners color setting forever.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/



322  Mike's Software / Qimage / Re: Compressed-sensing algorithm on: March 02, 2010, 09:07:26 PM
I think the general principle would give similar results to existing processes for the sort of photography we are involved in, but may work well for particular types of images and the way in which that image data is collected.

That was my initial reaction.  I believe we've gone about as far as we can go with photographic interpolation algorithms.  Some are a little sharper than the "hybrid" method in Qimage, but generally when you try to shoot for very sharp edges in a "random" photograph like some of the sharper algorithms do, you end up with a photo that looks a little more like a charcoal drawing than a photo.  The reason is that you've broken the relationship between sharpness and image size because there simply isn't enough data in the original to determine whether or not those edges should really be that sharp.  It's a balance, really, but you can't get something for (from) nothing.  The super-sharp edge detection algorithms do work well for non-photographic images like computer graphics (pie charts, screen shots, geometric 3D renderings, etc.).

I also have to say that there's less need for the super-refined interpolation algorithms these days than in the past.  Most people have cameras that have enough pixels to do the job.  The emphasis now is on proper sizing for printing so that you get the most of the pixels you do have, regardless of how many.  Of course, that's what the smart sharpening in Qimage is designed to do.

Mike

True the MPs available did increase in time but it depends on the printer's size whether that is enough. I can not judge what this algorithm does, it was just to inform that it exists. I mentioned other extrapolation routines before as it happens that Qimage is also used for jobs with texts and (rasterised) vector formats, reproduction of geometric art, whatever content like that and the hybrid etc extrapolation are then not the most suitable ones. That Qimage allows the extrapolation choices is nice, if that can be extended with sensible choices for related print jobs, why not?


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/


323  Mike's Software / Qimage / Compressed-sensing algorithm on: March 02, 2010, 02:45:11 PM
Another upsampling algorithm for Qimage?

http://www.wired.com/magazine/2010/02/ff_algorithm/all/1



met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/
324  Mike's Software / Qimage / Re: Is it possible to have more precision with metric units? on: March 01, 2010, 06:53:38 PM
Hello everyone,

This is my first post here, I'm using Qimage for a few months now, to prepare my Photobooks for printing (I make full page JPEG that I send to the photobook printing company).

I make for example 30 cm * 30 cm pages @ 300 dpi, with 1 or several photos on it, and use Print to File function.

On my last book I saw that some of my images were not perfectly aligned together, or in some cases the alignments are OK, but I have 3 photos on 1 page and there is more space between photo 1 & 2 than between photo 2 & 3.
(I saw this on the JPEGs before sending them)

On my pages in Qimage, all the photos are supposed to be aligned if I look at the "print location area".
The problem is that this information shows only precision to 1 mm, and with 300 dpi, 1 mm makes nearly 12 pixels...
So there can be 1-2 pixels misalignments without any ability to see them in Qimage.

All this would be much easier if there was a possibility to have more precise information than 1 mm.
Is this possible? If no, will it be possible in the future?

The internal  precision of Qimage is better than 1 mm and you can change sizes, positions in smaller steps than 1mm but on some places the feedback is per 1 mm, on other spots it is more precise. I miss that precision mainly in the Full Page Editor and it would be nice to have it also in the queue feedback. An old request that more people using metrics would like to see solved. Right now the inch precision in feedback is 4x that of metrics, if 0.1 mm steps would be available metric is only 2.5x ahead. There's no substitute for a slightly better feedback in metrics in my opinion.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/
325  Mike's Software / Qimage / Re: Qimage Epson 3800 ABW & Sepia on: March 01, 2010, 11:27:59 AM
First of all, thanks to all who replied, and for all your suggestions. I've been ill the past two weeks & was unable to  reply further. Since I've been home, I tried all suggestions and finally  discovered that  the default color controls in the Epson driver simply don't provide enough tint to be noticeable on my printer, with my paper, and in my viewing conditions, I settled on Sepia, Dark, H=75 V=0. these give me a very, very subtle sepia tint, but at least now, it is noticeable, and I can tell the difference between Sepia & B/W prints side by side. If I need a darker tint, I'll do it in PS and print using the Epson Color Mode. Again, many thanks for your help.

Jack


Jack,

Go to the Digital B&W list on Yahoo, more people there with the knowledge how to use the ABW mode of Epsons. Next step is the super cheap Quadtone Rip that gives full control on the ink channels.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/


326  Mike's Software / Qimage / Re: How to make a normal thermal printer to print wide format on: March 01, 2010, 11:23:16 AM
Hey Ray and Mike,

Check this youtube video out http://www.youtube.com/watch?v=v4Rrsfe__yU .

I have this in mind. Here they use an ink based printer.

Is it possible that we could change the orientation of a thermal printer and make it print like that.

Cheers,
Oj



Inkjet printing started with that kind of label, address, package, printing. In the 1950's.

Talk with HP. They have development packages for heads like that
http://h10088.www1.hp.com/cda/gap/display/main/index.jsp?zn=gap&cp=20000-13698-13855-14056^203091_4041_100__

The heads used on the B9180, Z3100, Z3200 are also used in a dual assembly version on the Z6100 that goes 60" wide.
And in a multi head static head assembly for their Web wide printing equipment:
http://www.youtube.com/watch?v=EV178ClWSus

Related thermoheads on the Latex printer:
http://www.hp.com/hpinfo/newsroom/press_kits/2009/SGIA2009/HP_Designjet_L25500_Fact_Sheet.pdf

If they can't help you come back here.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/
327  Mike's Software / Qimage / Re: Print resolution below LOW-300 PPI on: February 21, 2010, 12:17:49 PM
I can't work out how to obtain print resolutions below the "LOW-300 PPI" setting without completely turning off interpolation. This is on a PC running Windows 7 and QImage v2010.111. I would like to be able to have QImage print at 200 or 150 PPI.

When I used to run QImage on Win XP, 300 PPI was the highest resolution setting and I could select lower settings such as 150 PPI. But under Win 7 300 PPI is the lowest resolution available.

I need to be able to print panoramas at lower resolution because my printer driver (HP B9180) can't handle large images at high resolution.

Thanks

I'm not familiar with the B9180 driver but the input resolution requests are normally based on the image quality expectations of papers and so fixed in the media presets. A lousy bond paper will not create better images with a 2400x2400 dpi, 16 weave strokes dot pattern so will not have that setting and the related input resolution. If you select one of the other media presets can you get the required input resolution down? Could it be that the new Win 7 driver no longer has the old media preset you used on the old driver? HP no longer carrying that paper in their catalog?


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/


328  Mike's Software / Qimage / Re: Device Link transformation on: February 17, 2010, 04:17:46 PM


Note that Photoshop (CS4) only performs devicelink conversion in the same colour space, i.e. RGB->RGB, but not RGB->CMYK Sad

Thanks and best regards,
Auke


Auke,

Thought that CMYK would be mentioned. Given the RGB nature of Qimage I don't think you will get the last implanted. I can understand that it would open up more uses for Qimage than driving RGB devices. Though it will not replace a RIP on a CMYK-device.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/
329  Mike's Software / Qimage / Re: Device Link transformation on: February 17, 2010, 09:06:34 AM
Dear all,

I would very much appreciate it if QImage would support device link ICC profiles (as CS4 does).

Any chance of implementing it?

Thanks and greetings,
Auke Nauta


Auke,

What would you expect of device link support? 
Simulation of one RGB-Device on another one?
Or quality improvement that the normal CM processing doesn't deliver?


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/
330  Mike's Software / Qimage / Re: What does qimage do when on: February 17, 2010, 09:02:22 AM
two files are to be printed on one page and one file is srgb and the other is argb?

It will color manage them individually like it should.

Beyond that Qimage even allows you to give them an individual output profile or rendering if you right click on the image in the preview window and select Custom Color Management Selection.


met vriendelijke groeten, Ernst Dinkla

Try: http://groups.yahoo.com/group/Wide_Inkjet_Printers/
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