Photoshop Tips

Nondestructive Editing For Your photos With Photoshopتحرير الصور و تعديلها بطرق غير اتلافيه و غير تدميريه بالفوتوشوب

posted 19 Mar 2012, 05:52 by Manal Raafat

Nondestructive editing allows you to make changes to an image without overwriting the original image data, which remains available in case you want to revert to it. Because nondestructive editing doesn’t remove data from an image, the image quality doesn’t degrade when you make edits.
Ways of Nondestructive editing :
  • Working with adjustment layers: Adjustment layers apply color and tonal adjustments to an image without permanently changing pixel values.
  • Transforming with Smart Objects: Smart Objects enable nondestructive scaling, rotating, and warping. 
  • Retouching on a separate layer: Clone Stamp, Healing Brush, and Spot Healing Brush tools let you retouch non-destructively on a separate layer. Be sure to select Sample All Layers from the options bar (select Ignore Adjustment Layers to ensure that adjustment layers won’t affect the separate layer twice). You can discard unsatisfactory retouching, if necessary.
  • Filtering with Smart Filters: Filters applied to Smart Objects become Smart Filters and allow for nondestructive filter effects.
  • Masking Layer and vector masks : are nondestructive because you can re-edit the masks without losing the pixels they hide. Filter masks let you mask out the effects of Smart Filters on Smart Object layers. 
  • Adjusting variations, shadows, and highlights with Smart Objects: Shadow/Highlight and Variations commands can be applied to a Smart Object as Smart Filters.
  • Cropping non-destructively: After you create a cropping rectangle with the Crop tool, select Hide from the options bar to preserve the cropped area in a layer. Restore the cropped area anytime by choosing Image > Reveal All or by dragging the Crop tool beyond the edge of the image. The Hide option is unavailable for images that contain only a background layer.
That is how you can edit your photos non-destructively. I will explain more in the next post.
Thanks
MR
تحرير الصور بطرق غير إتلافية يسمح لك بإجراء تغييرات على صورة دون الكتابة فوق بيانات الصورة الأصلية، والتي لا تزال متوفرة فإذا كنت تريد أن إستعادة الصوره الأصليه يمكنك هذا. وهذا التحرير الغير تدميري لا يزيل بيانات الصورة و لا يغيرها ،كما أن جودة الصورة لا تتدهور عند إجراء التعديلات. 
تحرير الصور قد يكون بطرق تدميريه و اتلافيه و قد لا تستطيع استعادة الصوره الأصليه مره اخرى و لهذا اقدم لكم طرق حمايه الصور اثناء تناولها بالفوتوشوب.
ملاحظه هامه
أولا و قبل أى شئ احفظ الصوره فى ملف آخر و بإسم آخر فتكون فى مأمن من التلف .
طرق التحرير الغير تدميرى للصور بالفوتوشوب :
أولا :  
العمل مع طبقات التعديل Adjustments Layers:
 طبقات التعديل تقوم تطبيق لون وتعديلات الدرجات اللونية على الصورة من دون تغيير قيم البكسل بطريقه دائمة .
ثانيا :
تحويل الكائنات الى كائنات ذكية Smart Objects:
فالكائنات الذكية تمكن من التحجيم ( تغيير الحجمscaling) ، و الإستداره(rotating) ، والالتواء(warping) , و غيرها بطرق غير تدميريه. 
ثالثا : 
يجب ان يكون التصحيح على طبقة منفصلة : 
مثلا فى حالة استعمال اداة ختم النسخ clone stamp tool، 
و اداة فرشاة المداواة healing brush tool، 
وأداة الفرشاة الفوريه spot healing tool 
تمكنك من تنميق و تهذيب الغير المدمر على طبقة منفصلة. تأكد من تحديد اختر كل الطبقات في شريط الخيارات .
رابعا :
استمعال الفلاتر او المرشحات الذكية smart filters :
إستعمال طبقات الأقنعه (layer mask ) والاقنعة الواقية غير تدميريه لأنه يمكنك إعادة تحرير الأقنعة الواقية من دون أن تفقد البكسلات المخفيه.
خامسا :
استعمال أقنعة المرشحات ( filter mask) .
سادسا :
الاقتصاص الغير مدمر( crop) :
بعد إنشاء مستطيل الاقتصاص بأداة الإقتصاص، حدد إخفاء ( hide)من شريط الخيارات للحفاظ على مساحة الصوره كامله في طبقة فنقوم بإخفائها بدلا من اقتصاصها و فقدها نهائيا .
و هكذا يمكننا استعادة المساحة المقطوعة في أي وقت عن طريق اختيار صورة> الكشف عن جميع ( reveal all)أو عن طريق سحب أداة اقتصاص ما وراء حافة الصورة.
إذا لم كان خيار( hide) غير متوفر فى شريط الخيارات فإعلم انك   تعمل على طبقة الخلفية.
هذه بعض النقاط الهامه و سوف اضيف فيديو 

Canvas In Photoshop

posted 15 Jan 2012, 08:40 by Manal Raafat

  
 
Did you notice the difference between the three pictures . That is not a frame it is an option in photo shop named as canvas.  That option you can use  for,
  • Increasing the photo size and adding a fixed area around the image if you have a small image.
  • Adding plain homogeneous frame with matching color to get different look and feel.
  • Put your own touch and give a depth for the picture you like for the people you like or your favorite places ,pets , things and more of the things around you.
  • Adding thickness in some areas more than the other areas ,so you can write what you like on the image .So you can add more information and enriched your documents , or even write some memories on the photo of your lovely people in your life, then you can print it with that writing .
  • You can even write with your pen on the picture itself on that area , or with the Brush Tool or Pen Tool with photo shop as if it is your handwriting.
  •  Also there are many things to do with it try to find your own and add your comment .


HOW TO DESIGN IT ?
 
   START BY:
  • Open new photo-shop document with dimensions of  300 w x 225 h with any color for background to put your photo on it .
  • From the file menu choose place and choose the image you like from your computer,and check the tick in the option bar to place it .[diagram 1]
  • Now you placed the picture you like to make some changes for it .
  • Select the layer of the picture , go to the image menu and choose canvas size.The first thing is to check the box [Relative] then adjust the width and hight to 1 cm or the amount you like to add around the picture , put the Anchor to the middle  ,put the canvas extension color as you like to either foreground or background or other to choose your color of the canvas .
  • Click ok . [diagram 2] 
  •  Now you added continuous symmetrical border or frame around your image .
  • To add to the bottom of the photo ,back again to the Image menu -Canvas size  add now to the hight  only and check the Anchor in the upper middle [go to diagram 3 ]  
  •  If you want to add to the side just click the Anchor in the middle of the other side and add to the width not the hight .[go to diagram 4]
  •  Now you added to the side and bottom ,it is the same idea if you like to add to the top just put the Anchor to the lower middle and add to the hight to the image .
  • If you want to add your handwriting with photo-shop you should add another layer ans choose the Pen tool and start writing with your mouth what you like.
  • At last save your work .
That is the end of my work after I added a layer style to the handwriting layer , check it.

I hope you will like it and find it useful  .
Thanks MR

    Adjusting image sharpness and blur

    posted 1 Dec 2011, 01:45 by Manal Raafat

    Sharpening is the definition of edges in an image. 

    Notes and tips
    • Sharpen your image on a separate layer so that you can resharpen it later.
    • If you sharpen your image on a separate layer, set the layer’s blending mode to Luminosity to avoid color shifts along edges.
    • Sharpening increases image contrast. If you find that highlights or shadows are clipped after you sharpen, use the layer blending controls (if you sharpen a separate layer) to prevent sharpening in highlights and shadows.
    • If you need to reduce image noise, do so before sharpening so that you don’t intensify the noise.
    • Sharpen your image multiple times in small amounts.
    Sharpen using Smart Sharpen 
    Using the filter menu.[Filter menu -Sharpen -Smart Sharpen ]
    1 - Zoom the document window to 100% to get an accurate view of the sharpening. 2 - Choose Filter > Sharpen > Smart Sharpen. 3 - Set the controls in the Sharpen tabs:
    • Amount
    Sets the amount of sharpening. A higher value increases the contrast between edge pixels, giving the appearance of greater sharpness.
    • Radius
    Determines the number of pixels surrounding the edge pixels affected by the sharpening. The greater the radius value, the wider the edge effects and the more obvious the sharpening.
    • Remove
     Gaussian Blur: is the method used by the Unsharp Mask filter. Lens Blur: detects the edges and detail in an image, and provides finer sharpening of detail and reduced sharpening halos. 
     Motion Blur: attempts to reduce the effects of blur due to camera or subject movement. Set the Angle control if you choose Motion Blur.
    • Angle
    Sets the direction of motion for the Motion Blur option of the Remove control.
    • More Accurate
    Processes the file more slowly for a more accurate removal of blurring.
    4 - Adjust sharpening of dark and light areas using in the Shadow and Highlight tabs. (Click the Advanced button to display the tabs).


    Sharpen using Unsharp Mask

    The Unsharp Mask sharpens an image by increasing contrast along the edges in an image.You specify the radius of the region to which each pixel is compared. The greater the radius, the larger the edge effects, oversharpening an image produces a halo effect around the edges.
      How to use it ?
      1-If your image is multilayered, select the layer containing the image you want to sharpen.You can apply Unsharp Mask to any layer even the linked or grouped.
    2-Choose Filter > Sharpen > Unsharp Mask. Make sure the Preview option is selected.
    3-Radius: Drag the slider or enter a value to determine the number of pixels surrounding the edge pixels that affect the sharpening. The greater the radius value, the wider the edge effects. And the wider the edge effects, the more obvious the sharpening. 4-Amount: Drag the slider or enter a value to determine how much to increase the contrast of pixels.
    5-Threshold: Drag the slider or enter a value.
    Notice :If applying Unsharp Mask makes already bright colors appear overly saturated, choose Edit > Fade Unsharp Mask and choose Luminosity from the Mode menu.
    Sharpen selectively

    By using a mask or a selection .For example, you can use an edge mask with the Unsharp Mask filter on a portrait to sharpen the eyes, mouth, nose, and outline of the head, but not the texture of the skin.
    Sharpen a selection 1-With the image layer selected in the Layers panel, draw a selection. 2-Choose Filter > Sharpen > Unsharp Mask. Adjust the options and click OK.

    Sharpen an image using an edge mask  
    There are many ways to create an edge mask. 
    • Open the Channels panel and select the channel that displays the gray-scale image with the greatest contrast in the document window. Often, this is the green or the red channel.
    • Duplicate the selected channel.
    • With the duplicate channel selected, choose Filter > Stylize > Find Edges.
     
    • Choose Image > Adjustments > Invert to invert the image. 
     Find Edges filter applied and image inverted
    • With the inverted image still selected, choose Filter > Other > Maximum. Set the radius to a low number and click OK to thicken the edges and randomize the pixels. 
    • Choose Filter > Noise > Median. Set the radius to a low number and click OK. This averages the neighboring pixels.
    • Choose Image > Adjustment > Levels and set the black point high to get rid of random pixels.
    • Choose Filter > Blur > Gaussian Blur to feather the edges.

    Notice that The Maximum, the Median, and the Gaussian Blur filters soften the edge mask so that the sharpening effects blend better in the final image. Although all three filters are used in this procedure, you can experiment using only one or two.

    • In the Channels panel, Ctrl-click (Windows) or Command-click (Mac OS) the duplicate channel to make the edge mask a selection .
    • In the Layers panel, select the image layer. Make sure the selection is still visible on the image.
    • Choose Select > Inverse. 
    • With the selection active on the image layer, choose Filter > Sharpen > Unsharp Mask. Set the desired options and click OK.
    • To view your results, select the RGB channel in the Channels panel and deselect the selection in the image.

      Photoshop workspace &How to create a new file.

      posted 1 Dec 2011, 01:41 by Manal Raafat

      I will add helping Photoshop tips in a series like a book with diagrams and illustrations to be easy for you to follow me .
      I hope it will be clear and useful.
      Thanks 

      Photo-shop workspace [ Interface]




      Known as outside of the box.

      • Menu  bar:found on the top of the window. It contains the file,edit ,image and layer and other menus .
      • Beside the Menu Bar there is the  Application Bar showing the Hand Tool, Zoom Tool and Rotate View tool and Arrange Document and Screen Mode .
      • Tool Option bar :found under the menu bar.It shows the options of the selected tool .
      • Tool box:by default it is found on the left side of the window.It shows the different photoshop tools.
      • Pallets : or pans it is found on the left side of the window.Like the layer pallet and color and others. 

      Create A New Document .


      Select the Menu Bar >File>New  or use shortcut Ctrl -N.
      A new dialog box will appear to choose width ,hight ,and also you will choose pixel ,cm or points .



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