Selenium，PhantomJS屏幕截图模糊

Question

I am taking a screenshot with phantomjs that is coming out blurry. Is it possible to get better resolution of a screenshot so that it looks like the actual page?

driver = webdriver.PhantomJS() 
driver.set_window_size(a, b)
driver.get('www.page.com')
driver.save_screenshot('screenpic.png')   
screen =  driver.get_screenshot_as_png()
im = Image.open(StringIO.StringIO(screen))
#I then set a region to crop called wndw 
region = im.crop(wndw)

How can I make the page sharper?

Answer 1

The page gets focus information through the onfocus and onblur callbacks in the window object, which you can call yourself:

browser.execute_script("window.onfocus()")

If a specific element needs to be focused, try either:

browser.execute_script("document.getElementById('id').focus()") browser.execute_script("document.getElementById('id').click()")

Answer 2

From the comment to @Phillip's answer it seems you don't actually want the entire page, you want to get an image of one SVG file.

Why don't you get the SVG file and convert it to an image directly? According to this answer you can use Python rsvg to render SVG files.

If you don't know the SVG's URL you can use Selenium to find it out, then download it from Python and render to PNG.