If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
how to deal with dead pixels
Hello, I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? thanks, Sam. |
#2
|
|||
|
|||
how to deal with dead pixels
H.S. wrote:
Hello, I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? thanks, Sam. If you can live with the bother, fixing in any decent photo editor is trivial. I assume that is all that is wrong and one hopes the problem doesn't grow with time. Silly question but you do mean main sensor and not the viewing lcd? Dave Cohen |
#3
|
|||
|
|||
how to deal with dead pixels
"Dave Cohen" wrote in message news:VM3uj.5075$kD3.4070@trnddc08... H.S. wrote: Hello, I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? thanks, Sam. It is hardly a major problem, just make do with the remaining 3871487 pixels. Roy G |
#4
|
|||
|
|||
how to deal with dead pixels
Dave Cohen wrote:
H.S. wrote: Hello, I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? thanks, Sam. If you can live with the bother, fixing in any decent photo editor is trivial. I assume that is all that is wrong and one hopes the problem doesn't grow with time. Silly question but you do mean main sensor and not the viewing lcd? Dave Cohen I am going to give Gimp a try. And, yes, the main sensor. thanks, -HS |
#5
|
|||
|
|||
how to deal with dead pixels
On Sun, 17 Feb 2008 13:47:09 -0500, "H.S." wrote in
-Free: I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? Some cameras have the ability to map out dead pixels (interpolating them from nearby pixels). Check your manual. -- Best regards, John Navas Panasonic DMC-FZ8 (and several others) |
#6
|
|||
|
|||
how to deal with dead pixels
On Feb 17, 7:21 pm, "Roy G" wrote:
"Dave Cohen" wrote in message news:VM3uj.5075$kD3.4070@trnddc08... H.S. wrote: Hello, I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? thanks, Sam. It is hardly a major problem, just make do with the remaining 3871487 pixels. Roy G The easiest method is the clone tool. Just zoom it way up, use the clone tool to copy an adjacent pixel. Even better, set clone opacity to about 25% and clone from four close neighbors surrounding the dead one. |
#7
|
|||
|
|||
how to deal with dead pixels
On Mon, 18 Feb 2008 06:40:10 -0800 (PST), Don Stauffer in Minnesota
wrote in : On Feb 17, 7:21 pm, "Roy G" wrote: "Dave Cohen" wrote in message news:VM3uj.5075$kD3.4070@trnddc08... H.S. wrote: I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? It is hardly a major problem, just make do with the remaining 3871487 pixels. The easiest method is the clone tool. Just zoom it way up, use the clone tool to copy an adjacent pixel. Even better, set clone opacity to about 25% and clone from four close neighbors surrounding the dead one. Automate and simplify with the Photoshop Spot Healing Brush Tool with a Size of (say) 4 pixels. -- Best regards, John Navas Panasonic DMC-FZ8 (and several others) |
#8
|
|||
|
|||
how to deal with dead pixels
H.S. wrote:
Hello, I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? thanks, Sam. Dead/stuck/hot pixels are one of the things digital evangelists never mention. If your camera has 'grown' one, it will no doubt grow more as time passes. A simple image editor will do fine for a few. When you get dozens of the things, you can use layer subtraction or one of several programs to automatically subtract out the pretty spots. Layer subtraction tends to leave halos and artifacts, particularly when working on JPEG compressed images. The more sophisticated programs are smarter and leave fewer 'scars' on the image. -Moo |
#9
|
|||
|
|||
how to deal with dead pixels
In article , John Navas wrote:
On Sun, 17 Feb 2008 13:47:09 -0500, "H.S." wrote in -Free: I just noticed that my Canon A520 seems to have developed a dead pixel. It appears it started to 'die' around a month ago. Now in every dark picture, that one pixel comes out to be bright red. What are the various methods to deal with such dead pixels other than buying a new camera? Some cameras have the ability to map out dead pixels (interpolating them from nearby pixels). Check your manual. I would imagine they all do that initially after production. greg |
#10
|
|||
|
|||
how to deal with dead pixels
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Hot & Dead pixels | Maggie | Digital Photography | 12 | January 9th 07 08:07 PM |
Can hot pixels become dead pixels? | kl_tom | Digital Photography | 4 | October 5th 06 07:52 PM |
D200 dead pixels | Toby | Digital SLR Cameras | 20 | May 14th 06 12:57 AM |
hot/dead pixels | bp | Digital SLR Cameras | 8 | June 5th 05 12:30 PM |
concerned about dead pixels | bulge | Digital Photography | 24 | November 22nd 04 09:52 PM |