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時間:2022-09-28 來源:本站 點擊:258次
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Sudan coup as military detains PM, ministers******

Armed forces detained Sudan's prime minister over his refusal to support their "coup" yesterday, the information ministry said, after weeks of tensions between military and civilian figures who shared power since the ouster of autocrat Omar al-Bashir.

Civilian members of Sudan's ruling council and ministers in Prime Minister Abdalla Hamdok's transitional government were also detained by the joint military forces, the ministry said in a statement on Facebook.

Internet services were cut across the country and the main roads and bridges connecting with the capital Khartoum shuttered, it added.

Dozens of demonstrators set car tires on fire as they gathered on the streets of the capital to protest against the detentions, a witness said.

"Civilian members of the transitional sovereign council and a number of ministers from the transitional government have been detained by joint military forces," the information ministry said.

"They have been led to an unidentified location."

It added later that "after refusing to support the coup, an army force detained Prime Minister Abdalla Hamdok and took him to an unidentified location."

US Special Envoy for the Horn of Africa Jeffrey Feltman said "the US is deeply alarmed at reports of a military takeover of the transitional government."

"This would contravene the Constitutional Declaration (which outlines the transition) and the democratic aspirations of the Sudanese people," Feltman said on Twitter.

"Any changes to the transitional government by force puts at risk US assistance."

State television began broadcasting patriotic songs.

The Sudanese Professionals Association, an umbrella group of trade unions which was key in leading the 2019 anti-Bashir protests, denounced what it called a "military coup" and urged demonstrators "to fiercely resist" it.

The developments come just two days after a Sudanese faction calling for a transfer of power to civilian rule warned of a "creeping coup," at a news conference that an unidentified mob attacked had sought to prevent.

Sudan has been undergoing a precarious transition marred by political divisions and power struggles since the April 2019 ouster of Bashir.

Since August 2019, the country has been led by a civilian-military administration tasked with overseeing the transition to full civilian rule. But the main civilian bloc – the Forces for Freedom and Change – which led the anti-Bashir protests in 2019, has splintered into two opposing factions.

"The crisis at hand is engineered – and is in the shape of a creeping coup," mainstream FFC leader Yasser Arman told Saturday's press conference in Khartoum.

"We renew our confidence in the government, Prime Minister Abdalla Hamdok, and reforming transitional institutions – but without dictations or imposition," he added.

Sudan's doctors' union has declared "civil disobedience" and "their withdrawal" from all hospitals, including military ones.

Protesters took to the streets in several parts of Khartoum carrying the Sudanese flags.

"Civilian rule is the people's choice," and "No to military rule," some of them chanted.

有问必答:10bit是什么?摄影后期修图需要10bit显示器吗?******

在选购后期修图显示器时,很多影友可能都会注意到一个专业参数——10bit,也有不少商家会拿10bit面板作为专业摄影显示器的宣传卖点之一。但可能对于相当一部分人来说,10bit面板只是一个看起来很高端的参数,其背后实际代表着什么、对于摄影后期效果能带来多大提升却一知半解,所以这次也是借着这篇文章来对10bit显示器做一个全方位的答疑解惑。

一、 什么是10bit显示器?

1.色深与灰阶

显示器的色彩能力主要由三个参数决定:色域、色准、色深。

色域决定了显示器色彩的丰富度,色准决定了显示器色彩的准确度,色深则决定的是显示器色彩的过渡流畅度。

10bit就是指显示器的色深,是用 bit 数来表示数码影像色彩数目的单位。

而提到色深就不得不提另外一个概念,灰阶。通常来说屏幕上人们肉眼所见的一个点,即一个像素,它是由红绿蓝三原色组成的,每一个基色,其背后的光源都可以显现出不同的亮度级别,而灰阶代表了由最暗到最亮之间不同亮度的层次级别。

(图片来源自网络,侵删)

2.10bit显示器意味着什么?和8bit有什么区别?

相信经常使用PS等后期软件的小伙伴们一定对255这个数字非常熟悉,这里的255代表了0-255这个区间,总共有256个整数,也就是28,这就是我们所谓的8bit色深。红绿蓝RGB三个色彩通道各具有256个灰阶数,那么当你把三个通道的256相乘,就能得到8bit所能呈现的所有色彩了,即1677万色。

而10bit具有210的灰阶,每个通道为1024个灰度,最终色彩可以达到10.7亿色,这就是8bit和10bit的区别与差距:显示器面板bit值越高,其灰阶级数越多,能表示的颜色也越多,色彩过渡更为均匀。

二、使用10bit面板的显示器对于日常使用(图片\视频等)能带来明显的提升吗?10bit显示器需要特定的图片/视频源才能达到效果吗?

首先,10bit显示器确实需要特定的图片/视频源才能完全达到显示效果,因为如果图片/视频源本身素质不够,只有6bit色深,那么即使使用10bit显示器进行预览或播放,也无法改变素材自身的局限性。

一般来说,现在手机拍出的图片可达到8bit;网络上的视频或是一些蓝光光盘等视频内容还是以8bit居多;相机拍出的图片色深则可以达到10bit,甚至12bit、14bit,因此对于专业的摄影人群而言,10bit的显示设备无论是对于后期修图还是展示都非常重要;

而目前市面上主流的显示器显示位深基本分为三种:6bit、8bit、10bit。

就日常使用来说,在6bit显示器上预览上述素材时,很容易用肉眼看出明显的色阶;而8bit面板就会好上不少,大部分情况下是不会影响普通用户的正常视觉体验。那么,既然8bit面板已经足够日常使用,还有使用10bit面板的必要吗,或者说10bit面板到底能给我们带来哪些实际的提升呢?

我们在日常使用显示器观看图片或视频时,如果遇到一些比较暗、有大面积黑灰色过渡的图片或视频画面出现时,8bit的显示器就会出现大量的断层,而10bit的面板就能避免这种情况的出现。

            8bit显示位深                              10bit显示器位深

对于专业摄影师来说,10bit面板的作用就显得更为明显。无论是拍摄图片还是视频,摄影师通常都会在前期选择10bit色深进行拍摄, 这是因为许多摄影师经常会拍摄日出日落等大范围色彩过渡的照片/视频,而10bit相较于8bit,同样的色彩区间内,能提供10.7亿种色彩,这能使得素材色彩之间的过渡会更加顺滑,减少断层的出现。

(8bit色深的图片容易在日出日落等大范围色彩过渡时出现断层)

所以对于专业摄影师或是视频剪辑师来说,10bit面板进行后期处理能更好的还原素材,呈现更佳的视觉效果,减少8bit面板带来的色彩断层等问题。

所以就目前来说,10bit显示器基本都存在于高端专业显示器中,价格普遍偏高,而且现在我们所看到的网络图片或者视频还是以8bit居多,那么作为普通欣赏者而非专业制作者而言,8bit也足够日常使用了。但作为相机摄影玩家,已经在前期器材上投入相当,并有后期修图要求,显示器升级到10bit还是一笔稳赚不亏的买卖。这也是为什么很多摄影大师推荐使用10bit显示器的原因,像明基SW系列专业摄影显示器就是采用10bit显示位深,可显示更多种过渡色,实现自然连续的色彩渐变。

明基专业摄影显示器SW270C搭载10bit面板

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Bayern clinch 3******

Thomas Mueller (R) and Robert Lewandowski (C) of Bayern Munich vies with Mats Hummels of Dortmund during the German first division Bundesliga football match between Borussia Dortmund and FC Bayern Munich in Dortmund, Germany, Dec. 4, 2021. (Photo by Joachim Bywaletz/Xinhua)。

BERLIN, Dec. 4 (Xinhua) -- Bayern Munich defended the top spot in the standings after overpowering runner-up Borussia Dortmund 3-2 by courtesy on Robert Lewandowski's brace following a fast-paced encounter at the 14th round in Bundesliga on Saturday.。

The "BVB" took the reins from the kick off and caught a perfect start in front of home crowd as Jude Bellingham's pass into path allowed Julian Brandt to beat Bayern goalkeeper Manuel Neuer with a well-placed shot into the top right corner with five minutes played.。

Bayern remained unimpressed and found an answer four minutes later when Robert Lewandowski capitalized on Thomas Muller's header to slot home the 1-1 equalizer into the bottom right.。

Both sides exchanged attacks, but Bayern took the upper hand and controlled possession as Kingsley Coman pulled wide from promising position in the 23rd minute before his dangerous shot on target got refused by Dortmund goalkeeper Gregor Kobel three minutes later.。

Bayern gained momentum and got rewarded for in the closing stages of the first half as Lewandowski benefitted on a blocked clearance attempt and drilled the ball into the roof of the net to make it 2-1 with one minute remaining.。

Dortmund immediately turned up after the restart and restored parity with two minutes into the second half after Dayot Upamecano couldn't clear the ball from the area, allowing Erling Haaland to beat Neuer into the far post corner.。

Both teams pressed forward but Kobel refused Coman's shot in the 57th minute while Benjamin Pavard blocked Haaland's attempt moments later.。

Bayern as well as Dortmund couldn't hold the pace until the final whistle though and focussed on counterattacks.。

With 74 minutes into the game, the referee awarded Bayern a penalty after reviewing Mats Hummels' handball inside the box. Lewandowski stepped up and converted the penalty into the bottom right corner although Kobel anticipated the corner.。

Dortmund threw every man up front, but the hosts had to pay the price for the fast pace and couldn't overcome Bayern's bulwark in the closing stages.。

With the win, front-runners Bayern Munich work out a four-point advantage atop the standings whereas Borussia Dortmund stay on the 2nd place.。

"I think we saw an entertaining game with many chances at both ends of the pitch. However, it is sad that a controversial penalty decides this game," Dortmund head coach Marco Rose said.。

"We caught a subpar start into the game, but we reacted well to the early setback. We had several chances in the first have and should have established a higher advantage. Our start into the second half was equal to the first half, but we decided the game in the closing stages and secured a deserved win," Bayer head coach Julian Nagelsmann said.。

On Sunday, Stuttgart host Hertha Berlin and Borussia Monchengladbach face Freiburg to conclude the 14th round in Bundesliga. Enditem。

Thomas Mueller (R) of Bayern Munich vies with Mats Hummels of Dortmund during the German first division Bundesliga football match between Borussia Dortmund and FC Bayern Munich in Dortmund, Germany, Dec. 4, 2021. (Photo by Joachim Bywaletz/Xinhua) 。

Robert Lewandowski of Bayern Munich celebrates after scoring during the German first division Bundesliga football match between Borussia Dortmund and FC Bayern Munich in Dortmund, Germany, Dec. 4, 2021. (Photo by Joachim Bywaletz/Xinhua)。

Robert Lewandowski of Bayern Munich competes during the German first division Bundesliga football match between Borussia Dortmund and FC Bayern Munich in Dortmund, Germany, Dec. 4, 2021. (Photo by Joachim Bywaletz/Xinhua)。

Donyell Malen (1st R) of Dortmund shoots during the German first division Bundesliga football match between Borussia Dortmund and FC Bayern Munich in Dortmund, Germany, Dec. 4, 2021. (Photo by Joachim Bywaletz/Xinhua)。

Marco Reus (L) of Dortmund vies with Lucas Hernandez of Bayern Munich during the German first division Bundesliga football match between Borussia Dortmund and FC Bayern Munich in Dortmund, Germany, Dec. 4, 2021. (Photo by Joachim Bywaletz/Xinhua)。

Players of Bayern Munich celebrate after the German first division Bundesliga football match between Borussia Dortmund and FC Bayern Munich in Dortmund, Germany, Dec. 4, 2021. (Photo by Joachim Bywaletz/Xinhua)。

Erling Haaland (R) of Dortmund vies with Lucas Hernandez of Bayern Munich during the German first division Bundesliga football match between Borussia Dortmund and FC Bayern Munich in Dortmund, Germany, Dec. 4, 2021. (Photo by Joachim Bywaletz/Xinhua)。

Bodies found in Nepal near lost climbers******

A search team flew out to recover three bodies in a remote corner of Nepal's Himalayas yesterday, close to where a trio of French climbers went missing last month.。

The group were attempting to scale Mingbo Eiger, a 6,000-meter peak near Mount Everest, known in China as Mount Chomolungama, and were last heard from via satellite phone from their camp on October 26.。

Bad weather hampered efforts to find the men and a member of the team trying to locate them last week said they could have been buried under a depth of snow the height of a five-floor building.。

Police inspector Rishi Raj Dhakal said that three bodies had been found in the search area by local mountain guides but it was too early to confirm their identities.。

"A helicopter along with the rescue team of professional mountain guides has been sent to bring those bodies," he said.。

The three young climbers – Thomas Arfi, Louis Pachoud and Gabriel Miloche – were part of an eight-strong expedition. They had split into two groups to tackle different summits.。

The men appeared to have abandoned their summit attempt and turned back when the avalanche hit.。

Climbers have started returning to Nepal after the coronavirus pandemic forced a complete shutdown of its mountaineering industry last year and devastated the tourism-dependent economy.。

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