 Jan Day |
Pixelation of RAW images I'm using Canon EOS Rebel 300D, Photoshop CS, Adobe Camera RAW for processing.
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Christopher A. Vedros |
Jan, I'm having a hard time seeing pixelation in the images that you uploaded. How are you viewing them? Some viewers, like Microsoft's RAW image viewer plug-in, will display a preview image that is lower than full-resolution before it renders the full image. Also, if you are magnifying the image more than about 150 to 200%, you will start to see pixelation. I shoot in RAW with the same camera, so I don't think it's the camera or the sensor. There's nothing about a memory card that can affect the quality of your pictures.
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Jan Day |
Viewing them in Photoshop CS at 100%. There are blotches of darker pixels on petals of daffodils, top of oranges and the whole apple looks weird if you click on thumbnail and look at it at full size. It's not a smooth transition from dark color to lighter shades, it's blocked out in pixels. Maybe it's just me, but I don't like how they look coming out of the camera and they haven't always been this bad.
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Jan Day |
I should add, that I haven't done any adjusting of the images...this is how they are coming out of the camera as RAW, then saved as .jpg.
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Jan Day |
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Jan Day |
see the dark pixel blotches in the yellow petals and along the trunks of the trees? Drives me nuts. Are they supposed to be that way? I don't think so. Something is not right.
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John P. Sandstedt |
Jan- I think the whole point of using RAW is to avoid using JPEG. I just got a D30. When I shoot JPG and RAW at the same time, I get two different files - one about 3.5 MB, the other {RAW] about 8.5 MB. Obviously, lots more data. Canon supplied a RAW software program that allows transfer of the RAW image to Photoshop. The 8.5 MB can be as large as 150 MB, depending on other settings I make. Without doing anything, a side by side comparison of the enhanced RAW [it's in TIF]shows the night-and-day differemces [and better quality] thanthe JPG. JPG shows 255 colors per pixel; RAW converted shows 16,000 - that's part of the reason the files is so much larger. You need to use either the Canon software or Adobe's Camera RAW [a new version was described in another thread. Never use JPG for editing! It's best use is when you shrink the file to allow e-mailing of images.
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Jan Day |
Gee John - YA THINK?!!! I DO USE ADOBE CAMERA RAW!!! That's what I'm trying to do. I'm no idiot, but I guess I'm not getting my point across, because I'm being addressed as if I know nothing. Let me be more specific, so I can get proper help. WORKFLOW: If you read above - ONCE AGAIN, FOR THIS PURPOSE (showing what they look like coming off the camera), I did NOT do any editing, just took it through ACR, to PS and saved as .jpg VERY SIMPLY, I'm suddenly getting SH-T images out of my camera and can't do much with them and would like to know why, not get a dissertation on the upside of RAW vs. jpg, of which I am WELL AWARE. I've probably used PS longer than you - don't just assume what a person does or doesn't know.
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Terry R. Hatfield |
Not Sure What Your Seeing? They Look Fine To Me Jan...
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Christopher A. Vedros |
Jan, take a deep breath. I've clicked on all the examples that you uploaded, looked at them multiple times, and I'm sorry, I just don't see the blotches or pixelation that you are describing. From the description of your workflow, it's obvious you know what you are doing. I just don't see what you are describing on my screen. Is it possible that your display settings were inadvertantly changed? Have you checked what resolution and color depth your display adapter is set at? Have you tried viewing any of your images on another computer? Chris
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John P. Sandstedt |
I, too, looked at the images you posted. I found the one you highlighted to have depth of field issues [you focused on the closer piece of fruit] but I can't see the problem you've described. I think you need to figure a better way to get your pictures from camera to computer. Canon's Digital Photo Professional transfer the RAW image to Photoshop [TIF] directly. Then, it can be edited in Photoshop [as per normal.] You might want to Uninstall all of the programs and, re-install them. Or, better still, [and when in doubt] check the Manuals and/or call Adobe Tech Support. You know, you asked for help; folks gave you some suggestions even though none of the commenters could see the problem as displayed in the thread. So, you didn't like the comments and took them very personally - but, you were the one asking for help. Then, in the most mature way, you proceed to partially expurgated expletives. Gee, Jan, grow up.
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Jan Day |
I'm not going to debate your level of maturity, but the word "never" and "you need to" comes off as giving orders, when you have no idea what I know or use to edit my images. Of couse, I'm going to take offense. What if I said to you, out of the blue, "never use anything but Photoshop to edit images" when I have no idea what you use? I get tired of this kind of response. Thank you, Chris, for asking about the monitor. It reminds me that I have, in fact, had problems with my monitor lately and I would bet since no one else can see what I see, that it is the problem. It has gotten progressively worse - popping and making sounds as if it's degaussing on its own. It needs to be replaced, from what I have read, but I just haven't done it yet. I must do it ASAP. Thank you for your helpful response.
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Bob Chance |
Okay! So then, if you are such a know-it-all, then why don't you fix the problems that apparently no one else sees. I too have viewed your posted images, even in full screen mode and can see no evidence of pixelation. You never shared any information with anyone other than you were shooting RAW, so how is anyone supposed to guesstimate your level of knowledge or espertise? No one was trying to insult your intelligence, only merely offering advice based on what little you had given to go on. I think an apology is in order. Bob
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anonymous A. |
For what it's worth, Jan, I CAN see your pixellation...but not until I push the zoom level to 200% on a downloaded version at the standard monitor resolution of 72dpi, much lower than the original. That leads me to believe that you are seeing screen artifacts, but it isn't conclusive. I would suggest that you print the images at A4 or larger on a quality printer, using gloss photo paper and see if the pixellation shows up there. If yes, you probably need to have the camera serviced; if not, you may need to calibrate (or replace) your monitor...or at least look at these shots on another screen.
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Andrew Laverghetta |
I normally use a Dell 15" LCD monitor on my own computer when I edit my photos but when I used to come home and see what my photos looked like on my parents computer, a slightly larger, better, Dell LCD, I noticed that gradation from light to dark seemed jagged. I went into monitor properties and found that it was set lower than the best color which is "True Color (32 bit)" on this monitor. Yeah, along with others, I'm not seeing anything out of the ordinary so maybe some monitor settings got changed somehow unless you're the only person touching your computer. I wasn't quite sure what you explained about the second set of images though so I'm not sure about those. Just that the yellow flower has the focus on the leaf and the green forest looks a little bit unsharp though they are unprocessed as I believe you said. Color is sweet though. Reminds me of House of Flying Daggers. But yeah, check out the computers at a friends place or a public library and see what's up. It's all good, don't worry, though, I think it's rude for some people to just pop in for one message, ask for an apology and have that be it or at least their only addition. sigh.....peace
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