Pixel Art With Photoshop

Hi,

I would like to see pixel values of 16-bit TIFF images in Photoshop CC2014. I'm able se 8-bit (0-255) pixel values using he histogram and info tabs but it seems that when 16-bit images are opened the pixel values are still displayed from 0-255.

I want to do to see this information for scientific purposes, not for typical photo editing. I've read many discussions about the practicality of editing 16-bit images but would like to avoid having my original question overrun by that discussion here. I am specifically looking for differences between pixels with more resolution than 8 bits.

I found one recommendation t check a box stating "show pixel values in 16-bit" or something like that but I have not yet been able to find the checkbox.

Thanks for any help.

I have a 16 bit image which , due to raw pixel values, appears mostly black when first imported into PS. I can use auto contrast to stretch the image and to make edits, however this changes every pixel value. Is there a way to edit a stretched image then revert back to the original pixel values? I need to maintain the raw pixel values, as these are data I need to use for calculations. I saw one suggestion about using an Adjustment layer then cloning pixel values, but the adjustment layer will not stretch properly to see the image. Any suggestions?

Hi all,

I'm working with a marine imaging lab and have been utilizing Photoshop CC to make area measurements of sediment profile images (SPI) of the sub-seafloor.

Our camera set up utilizes a camera inside of a wedged prism that penetrates the seafloor and takes a photograph of the sedimentary matrix in-situ. The image returned is then manually separated into two layers in photoshop and measured, one layer for the portion of the image penetrating the sediment, and another for the portion of the image showing the water above the seafloor. By selecting each layer and commanding the histogram window to display a pixel count from the selected layer only we establish an area of penetration in out image. Up until today the histogram was giving me a very accurate reading. Today we updated our workflow to utilize 16 bit Adobe RGB images converted to .psd directly from camera raw in 300dpi resolution. Our previous workflow involved converting .raw to .jpeg to .psd in 8 bit, 300dpi resolution. The images look great now but the histogram returns a pixel count of about half of the previously measured values. What is going on here? I can still achieve n accurate pixel count by ctrl clicking my penetration layer and selecting a histogram read from entire image, it still drops a handful of pixels around the marquee but it is much closer to reality.

Any help would be much appreciated.

Cheers,

-Steve

I have a problem with photoshop. Everything I do gets pixelated.

When I paste or place an object from Illustrator CS6 I choose place as smart object and as soon as I pace it it gets pixelated. I have tried with and without the anti-aliased box checked. When the box is checked photoshop pixelates the image and when the box is not checked the image looks really strange and digital with the pixels showing. All curves that were smooth and nice in Illustrator looks jagged and strange.

When I try and draw a shape in photoshop it looks in the layer-list like it's a shape layer but the object is heavily pixeled.

I have tried opening a file created in Autocad (by using dwg to PDF) and opening it as a smart object in Photoshop. Everything is pixelated.

When starting a new file in PS I have a 300 pix per inch resolution, 16 bits RGB color, sRGB IEC61966-2.1 as my color profile and square pixels as my pixel aspect ratio.
Under general preferences I have the box for "Place or drag raster images as smart objects" (I have also tried without it). I have also tried with the box for "snap vector tools and transform to pixel grid" on and off.


Regardless of what i do photoshop still pixelates everything. I have no idea what to do. Could there be some sort of setting that I have overlooked?

Hi!
I have a dilemma with a high resolution picture that I want to use on a large screen. The problem is the screen has a low resolution which seem to distort the picture sometimes. Also I would like to zoom in the picture.

The monitor is a 47 inch HP LD4720tm sporting a 1,920 by 1,080 resolution. So the resoultion is like an ordinary desktop monitor but the size is more than double that. In other words, the pixel density (ppi) is much smaller.

The picture is of a clock. Size is about 670X670 pixels. I cropped out this clock from a larger 12MP Raw format Nikon picture. The cropped out clock looks something like this (my real image is copyright protected but this is very similar with 700x644px):


(http://www.stanleylondon.com/ClockShipsBellSml1.jpg )

On the screen this picture should take up a fixed size of 170X170 pixels (ie about 10% of the monitor).

The first way I did this was to simply in Photoshop Elements save the 670X670 picture as a png and with dimensions 170X170 pixels. ("Save for web" to get it as small in size as possible and chose png and 170X170). Then I put the 170X170 pic on the background canvas. It looks very nice. However, when I zoomed in the numbers and other details look very jagged or blurry.

So now I tried with the larger resolution 670X670px. I put this on the background too, and as it should only take up 170X170px, I clicked it and dragged to resize it. But this picture looks much worse than the 170X170 pic. I suppose the 170X170 pic perfectly fits the 170X170 space while the 670X670px is distorted. I mean, for the 170X170 pic there will be one pixel for each monitor point. When I do the exact same comparison on a 21 inch 1920X1080 monitor they look equally good, so it must be due to the low pixel density of the 48 inch monitor where the human eye can see each pixel.

However, now when I zoom in the details for the 670X670px were clearly visible.

I tried a few other resoultions like 360X360 and 270X270 (I resized the 670X670 pic to these sizes) and both png and jpeg. They also looked worse in normal view but of course in zoomed view they displayed more details than the 170X170 pic.

My dilemma now is how to get an image that will look good both when zoomed in and when in 100% zoom (normal view) on this large screen. Is there a way to do this. Eg like resizing to a resolution larger than 170X170 that will also look good in normal view.

Thanks.

I have this Cheese image which is sliced worm-shape. I want to know how to fragment/break it into pixel sized pieces, to look like sand. Pixellate might be a way, but it also applies a lot of new colors which are very different from the original size. And also Pixellate is not the smallest way possible.

Unfortunately the pattern stamp tool insists on having one or two pixel-wide white edge on my touch ups. No brush type or amount of hardness I choose from the tool options bar gets rid of this. Any idea how I can set the pattern stamp tool to have a hard edge, so hard there's absolutely no fade to white at all on the edges.

Hi,

I am learning Photoshop in the hope of printing posters. I have questions regarding printing. Originally, when you create an image the resolution is set to 72 pixels/inch. I have learned I need to switch that to 300 pixel/inch.

1)Will I have to recreate all my images from scratch in 300 resolution?

2)Do I lose a lot of quality on the final product if i convert 72 -> 300.

3)My images are 11x17, when i hit 100% and view rulers, it shows my image at roughly a 3:1 ratio, why does it do this?

4)Can I view what a final printed image will look like with in Photoshop?

5)How do I preserve quality when switching to 300 resolution?

6)Say I use an image that is originally 600x600, will switching to 300 resolution make the new image horrible?

I may have more questions with as these get answered,
Thank you,
Geokatz

Hello,
I am new at this so thanks for helping me out. I am making a fiber art portrait from a photograph. I need to duplicate the colors in the photo with fabric. I know in Corel you can select the eyedropper, click on the image, and produce a sample of the color to then print out and take to the fabric store to match. I have spent the evening trying to do this in Photoshop. I have used the eyedropper, used the 3x3 pixel, get the circle with the color, but cannot figure out how to drop them somewhere to then print out to take to the fabric store. Is is possible to do that? Any other suggestions if not? It's a total of about 6 colors as I have applied the Posterize feature. Thank you.

Need to convert a CMYK+Spot EPS file to a CMYK+Spot TIFF. I have been reading what I can about the process, but must be missing something. I was able to create a new file with the exact same pixel dims and copy the channels into the new file. However, it is not quite right. Is there a clear cut tutorial somewhere that can help me?

Thanks!