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Images are Suffering From Artifacting & Discolored Pixels
Hi, I'm an ameture photographer and am having trouble with my image quality. I'm using a Nikon D60, and have tried shooting with various image qualities, including JPG and NEF RAW, but my final images suffer from artifacting. Also, nearly all of my images contain random, discolored pixels throughout the image. Could this simply be a dust issue or is it possible something could be wrong with the camera?
Do you have the sharpening turned up too high? Why not try a camera reset? Go into the menu and scroll to "reset" and follow the on-screen instructions.
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The printed output is fuzzy, blurry, or grainy, or the edges of objects in the images are jagged.
Solution
Follow these steps until the issue is resolved.
Step one: Check your paper
Many papers have printing and non-printing sides. Load the paper with the printing side down.
Use
the correct paper type for the project. For everyday documents, plain
paper works well. For documents with dense printing, such as
high-contrast graphics or photographs, use HP Advanced paper for the
best results.
If
these steps do not help, try a different paper. Ink might not bleed as
easily on heavier paper. Paper that does not accept ink well is also
prone to bleeding and smearing. HP designs its inks and papers to work
together.
Step two: Check the settings
In the program being used for printing, click File
, and then click Print
.
The Print
window opens.
Make sure the appropriate product is selected, and then click Preferences
or Properties
.
The Preferences/Properties
window opens.
Click the Printing Shortcuts
tab.
Consider modifying some or all of the options in the Printing Shortcuts
menu to increase print quality.
Print quality
: If the quality of the printouts is not acceptable, try increasing the
print quality. To print more quickly, try decreasing the print quality.
Paper type
: If one of the options matches the paper type exactly, select it instead of Automatic
.
Paper size
: Make sure that this option matches the paper loaded in the product.
To see additional options, click the Advanced
tab, and then click Advanced Features
.
The Advanced Features
window opens. Consider changing the following option:
Ink volume
: Adjust the amount of ink that prints on a page. For lighter images
(less ink), drag the slider to the left. For darker images (more ink),
drag the slider to the right. The lighter the ink volume, the more
quickly the printout dries.
Step three: Check image resolution
Make
sure that the image file has enough resolution for the size of the
printed picture. Although many photo applications can enlarge an image
or part of an image to any size, eventually the individual pixels become
visible and the whole image looks blurry.
Here are some general guidelines for image file resolutions:
94 pixels per cm (240 pixels per inch) for images to print on smaller format photo paper, such as 10 x 15 cm (4 x 6 inch)
117 pixels per cm (300 pixels per inch) or higher for larger format photo papers
Lower resolutions might produce acceptable images when printed on rough-textured paper
Step four: Align the cartridges
If
the previous steps have not improved the appearance of the printout,
align the cartridges. See the user guide for alignment instructions.
The printed output is fuzzy, blurry, or grainy, or the edges of objects in the images are jagged.
Solution
Follow these steps until the issue is resolved.
Step one: Check your paper
Many papers have printing and non-printing sides. Load the paper with the printing side down.
Use the correct paper type for the project. For everyday documents, plain paper works well. For documents with dense printing, such as high-contrast graphics or photographs, use HP Advanced paper for the best results.
If these steps do not help, try a different paper. Ink might not bleed as easily on heavier paper. Paper that does not accept ink well is also prone to bleeding and smearing. HP designs its inks and papers to work together.
Step two: Check the settings
In the program being used for printing, click File , and then click Print .
The Print window opens.
Make sure the appropriate product is selected, and then click Preferences or Properties .
The Preferences/Properties window opens.
Click the Printing Shortcuts tab.
Consider modifying some or all of the options in the Printing Shortcuts menu to increase print quality.
Print quality : If the quality of the printouts is not acceptable, try increasing the print quality. To print more quickly, try decreasing the print quality.
Paper type : If one of the options matches the paper type exactly, select it instead of Automatic .
Paper size : Make sure that this option matches the paper loaded in the product.
To see additional options, click the Advanced tab, and then click Advanced Features .
The Advanced Features window opens. Consider changing the following option:
Ink volume : Adjust the amount of ink that prints on a page. For lighter images (less ink), drag the slider to the left. For darker images (more ink), drag the slider to the right. The lighter the ink volume, the more quickly the printout dries.
Step three: Check image resolution
Make sure that the image file has enough resolution for the size of the printed picture. Although many photo applications can enlarge an image or part of an image to any size, eventually the individual pixels become visible and the whole image looks blurry.
Here are some general guidelines for image file resolutions:
94 pixels per cm (240 pixels per inch) for images to print on smaller format photo paper, such as 10 x 15 cm (4 x 6 inch)
117 pixels per cm (300 pixels per inch) or higher for larger format photo papers
Lower resolutions might produce acceptable images when printed on rough-textured paper
Step four: Align the cartridges
If the previous steps have not improved the appearance of the printout, align the cartridges. See the user guide for alignment instructions.
PSC 1600 User guide:
http://h10032.www1.hp.com/ctg/Manual/c00276605.pdfClick on this link or copy and paste the complete link into your browser. If I could be of further assistance, let me know. If this helps or solves the issue, please rate it. Thanks, Joe
JPEG is a raster image. Every pixel is identified to the computer. MS Word is resizing the picture to make it fit. When it does this it causes pixels to disappear. This is why you will get blocky images and or unreadable text.
The Solution is
Re size the image and bump the dpi to at least 300. This will add enough pixels to where you won't notice the stair step.
The professional way to do it is with Vector images. This is difficult to do if you are using a photograph. You will need to plot the image out (basically re draw it with lines and bucket fills)
the resolutiion dpi has little to do with the camera, its more about printing/displaying - that is just the screen display resolution. you can change that to 300 PPI (DPI) in most imaging applications.
the important thing is the pixels you have length and width
so 1000 pixels x 1000 pixels is the key to this
whats the max pixels of the camera - that would give you the resolution.
now to print an image onto paper the acceoted standard for top quality is 300 PPI
so 1000 pixels width divided by 300 pixels per inch ppi = 3.3 so you can print at 3.3 inches.
Now you may even be able to get away with as low as 180 PPI on some prints and depending on how far away it will be viewed - so this needs to be played with.
- can you reply here - with a comment and tell us
1) how many pixels you have
2) what image editing software you are using
3) how big you would like to print
This specification is carefully determined to balance between possible time lapse to create smooth motion and actual data processing ability of the hardware.
Resolution refers to the number of pixels or dots per inch (dpi) in an image. Basically, the more dpi that a photo has, the sharper an image is. High resolution is important if you are going to be printing photos (look for a photo-capable printer that has a high resolution, say 4800 x 1200 dpi). If you’ll be e-mailing your images, you may want to save your photos at a lower resolution for faster file downloads.
Digital camera resolution is measured in megapixels (1MP equals one million pixels), so the higher the MP capacity a camera has, the higher quality of images it will produce. Generally you can take good photographs with a 3MP camera.
Resolution refers to the number of pixels or dots per inch (dpi) in an image. Basically, the more dpi that a photo has, the sharper an image is. High resolution is important if you are going to be printing photos (look for a photo-capable printer that has a high resolution, say 4800 x 1200 dpi). If you’ll be e-mailing your images, you may want to save your photos at a lower resolution for faster file downloads.
Digital camera resolution is measured in megapixels (1MP equals one million pixels), so the higher the MP capacity a camera has, the higher quality of images it will produce. Generally you can take good photographs with a 3MP camera.
Ocassionally images from digital cameras will have "defect" pixels. These pixels may appear in the final photograph as bright white, green or red spots that are out of place when compared to the rest of the image. Sometimes people call these spots "hot" or "dead" pixels.
Usually these pixels, and other types of "digital noise" appear in the darker or underexposed parts of images; additionally, images taken at longer exposure times are much more likely to have this issue.
Many Nikon cameras have a "noise reduction" or "NR" process that fixes these problem areas. When NR is activated and image exposure times drop below 1/4 of a second the NR automatically processes the images as they are saved. This Noise Reduction feature is sometimes called "Night Portrait" or "Night Landscape" Scene Modes.
If these spots are seen on images photographed under normal conditions (bright light with exposure times shorter than 1/4 second) then the camera may need to be sent in to a Nikon Service Center for repair.
Notice the green defect pixel near the center of this image.
Ocassionally images from digital cameras will have "defect" pixels. These pixels may appear in the final photograph as bright white, green or red spots that are out of place when compared to the rest of the image. Sometimes people call these spots "hot" or "dead" pixels.
Notice the green defect pixel near the center of this image.
Usually these pixels, and other types of "digital noise" appear in the darker or underexposed parts of images; additionally, images taken at longer exposure times are much more likely to have this issue.
Many Nikon cameras have a "noise reduction" or "NR" process that fixes these problem areas. When NR is activated and image exposure times drop below 1/4 of a second the NR automatically processes the images as they are saved. This Noise Reduction feature is sometimes called "Night Portrait" or "Night Landscape" Scene Modes.
If these spots are seen on images photographed under normal conditions (bright light with exposure times shorter than 1/4 second) then the camera may need to be sent in to a Nikon Service Center for repair.
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